SALTWATER AQUARIUMS

Saltwater Aquariums
A brief introduction to saltwater aquariums. Different categories. Pros and cons.
This article provides a brief introduction to saltwater aquariums. It will first provide a brief overview of saltwater aquarium along with a short history. Then we'll discuss the different categories of saltwater aquariums. After that we'll go into more detail about what you might find in a saltwater aquarium. A lively discussion of pros and cons for keeping a saltwater aquarium follows. Finally, we'll conclude this article with online references for you.

Overview of a Saltwater Aquarium

The evolution of the saltwater aquarium has been nothing short of spectacular in the past 20 years. What could previously only be enjoyed by hobbyists living by the ocean can now be successfully undertaken by hobbyists around the world!

History

The history of saltwater aquariums is much shorter than that of freshwater aquariums. Reasons for this include how much more complicated the sea environment is to encapsulate within a tank as well as limited access to fish and invertebrates.

Other than a few very dedicated scientists, saltwater aquarium keeping really didn't hit it big until the 1950s. Probably the advances made with different filtration systems is what enabled fish hobbyists to dream big and begin keeping saltwater aquariums.

But with the advent of information sharing via published books as well as through the Internet along with developed commercial transportation means (not just airlines as many fish stores also use ground shipping as well) have both brought the saltwater aquarium to the masses.

FO, FOWLR, and Reef

When talking about saltwater or marine aquariums, you'll inevitably come across discussions using the following acronyms, FO and FOWLR:

  • FO stands for "Fish Only."
  • FOWLR stands for "Fish Only With Live Rock."

The other choice you have with a marine aquarium (if you're not going to go with FO or FOWLR) is the Reef Tank.

With the first two categories, FO and FOWLR, the idea is that you're not going to have any invertebrates (animals without backbones - we're talking anemones, sponges, and both soft and hard corals). With the Reef Tank, your focus is on the invertebrates. Any fish you have will be a secondary focus.

The distinction between FO and FOWLR is on the "Live Rock" aspect. Live Rock refers to rocks from the ocean that have living bacteria and other micro and macro organisims on them which helps with biological filtration. The rock itself isn't living anymore, in fact, it's usually dead coral. It's important to remember that Reef Tanks will usually use LR as well.

What's in a Saltwater Aquarium?

You can find the following in a saltwater aquarium:

  • fish - mostly marine tropical fish usually caught from exotic locations. Some of the more popular tropical saltwater fish include: clownfish, damselfish, angelfish, butterflyfish, tangs, bennies and globies. You'll also find puffer fish, porcupine fish, lionfish (also known as turkeyfish), jawfish, and mandarinfish. Although it's not that common, you'll also find more exotic fish being kept in tanks all the time. The black banded cat shark is a popular one that often times if bought as an egg. Seahorses are another fish that are difficult to keep in captivity.
  • corals - both soft and hard corals
  • other invertebrates - anemones, sea urchins, starfish, crustaceans (crabs and shrimp), tube worms, and mollusks (clams, snails, and octopuses). Occasionally, you'll find jellyfish in tanks as well but they require expert care.
  • live rock

Pros

There are a number of reasons that keeping a saltwater aquarium makes sense:

  • The Beauty of the Fish
  • The Challenge
  • The Interest helps protect fish in the wild

If you've every gone snorkeling or scuba diving near a reef, you were probably amazed with the different kinds of fish you saw and how colorful they were. Marine biologist, Justin Marshall, explains a predominant theory that the reason why reef fish are so colorful is to help scare away predators! There's no two ways about it. If you are in love with the neon, bright, and flamboyant colors of coral reef fish, the only way you're going to enjoy them at home is with a saltwater tank.

For many fish hobbyists who start out with freshwater tanks, the lure of facing the challenge of keeping saltwater fish is such a strong rhythm beating within them that at some point, they cannot ignore it any longer and succumb to being saltwater CRAZY.

Finally, another pro for keeping a saltwater aquarium is that the public interest helps protect fish in the wild. If so many people weren't involved with this hobby, then global impacts to saltwater fish in the wild wouldn't be as widely followed or controlled.

Cons

Before you go off and buy your live rock, consider the following cons of saltwater aquariums:


  • Larger tanks required
  • Need to deal with more sophisticated water chemistry
  • Marine fish are more sensitive to water chemistry
  • Costs more than freshwater
  • Environmental issues more complicated with saltwater fish

First of all, marine fish usually require larger tanks than freshwater fish. For example, experts suggest that you provide at least two square feet of surface area for one inch of a saltwater fish. Generally speaking, a freshwater fish can get along with one square feet per inch of fish. While you might be able to start a freshwater aquarium with a 10-gallon tank, most experts recommend that you go no smaller than 30-40 gallons for a saltwater tank (while on the other extreme, there are saltwater nano-tanks which are under 30 gallons and saltwater pico-tanks which are under 1 gallon!)

As if freshwater fish owners don't have enough to worry about with their tank water, if you want to keep saltwater fish, you better sit down and get more knowledgeable on the subject. Besides worrying about the temperature, oxygen levels, pH, nitrogen levels, and phosphate level, you'll now need to keep an eye on the saltwater mix. People with saltwater tanks usually have to monitor the specific gravity to make sure that the saltwater density is just right. Besides the salinity, you'll need to watch the oxygen level as well. That's because saltwater doesn't hold as much oxygen as freshwater so you'll probably need more aeration.

Marine fish are usually more sensitive to problems with the water chemistry than fresh water fish. This is because out in the big blue ocean, conditions are usually quite stable. Freshwater fish are a little more used to fluctuating conditions. Saltwater fish don't have that kind of tolerance because they haven't had to develop it. Their fishbowl is so huge that they've never had to worry about nitrite levels before. But if you keep them at home, you'll need to monitor aquarium chemical levels.

Overall, due to how they are harvested (usually caught in the wild), marine fish cost more. Fish stockers are having more success with farming saltwater fish but for the most part, these fish must be caught in the wild in tropical warm waters and then transferred to your fish store.

Finally, due to the fact that most of the elements that go into a saltwater tank (fish, plants, live rock, substrate), must be harvested from the wild, the environmental impact is larger than the footprint we leave with freshwater aquariums. There are issues with how some fish and invertebrates are collected in the wild (reef destruction and fish dying as part of the supply distribution, for example), and aquarists need to be responsible in supporting sustainable practices.

Overall, the decision to start a saltwater aquarium probably has less to do with practical matters (because let's face it, a saltwater tank is harder and more expensive to maintain than a freshwater tank) and more to do with what you want and just gotta have. As long as you're up to the challenge, you'll find more than plenty to put into your tank nowadays. The problem today isn't finding saltwater fish but deciding what will go into your tank before you max it out. Especially with the Internet, you should be more confident then ever that if you face problems, you'll be able to get help with your tank. Good luck!

References

If you are interested in learning more about saltwater aquariums, you may find the following sites useful:

Doctors Foster and Smith - sell saltwater fish, live rock, invertebrates, and plants as well as aquarium supplies. They have two separate sites for selling live fish:
LiveAquaria.com and eTropicals.com (fish and invertebrates from the Caribbean only).

WebWebMedia - offers all kinds of information to those interested in saltwater tanks

comments powered by Disqus
Getting The Tank Ready
Getting The Tank Ready
Creating an ecosystem.
Tips for Keeping Nocturnal Fish in the Marine Aquarium
Tips for Keeping Nocturnal Fish in the Marine Aquarium
When the sun sets and the moon rises, the reef doesn't go silent - a whole new group of inhabitants comes out to play.

Most Recent Forum Discussions

  • setting up tank - By vostric, (0 replies)

    I have a 20G tank, with a nice open space in the middle of my Eco-Complete substrate, I have my heater and filtration in, I ...

  • Brown algae on plants - By billy_corycat, (1 replies)

    What can I do about brown algae on my plants? What causes this? And will it kill my plants?

  • Black friday sales? - By billy_corycat, (0 replies)

    Is there anything aquarium related that usually goes on sale for Black Friday? I'm wondering if there's anything I could save money on - this ...

MOST RECENT ARTICLES

Sea Urchins in the Saltwater Tank
SEA URCHINS IN THE SALTWATER TANK
If you are looking for a unique invertebrate to add to your saltwater tank, consider the sea urchin.
The Top 5 Tetras for Breeding in the Home Aquarium
THE TOP 5 TETRAS FOR BREEDING IN THE HOME AQUARIUM
Breeding aquarium fish can be tricky, but with the right tank setup and preparation it can be done.
Aquarium Decorations
AQUARIUM DECORATIONS
Types of decorations.

SALTWATER AQUARIUM ARTICLES

AQUARIUM SETUP

If you want to maintain a healthy, thriving aquarium you must be sure to set up your tank properly the first time. The articles in this category will help you set up your tank correctly.

Getting The Tank Ready
Getting The Tank Ready
Creating an ecosystem.
Saltwater versus Freshwater Aquariums
Saltwater versus Freshwater Aquariums
Learn the arguments for choosing to set-up either a freshwater or saltwater aquarium.
How to Start a Brackish Tank
How to Start a Brackish Tank
If you are looking for a new challenge as an aquarium hobbyist, try cultivating a brackish tank.
Preparing Saltwater for your Marine Tank
Preparing Saltwater for your Marine Tank
Setting up and maintaining a marine tank can be a challenging experience and preparing your saltwater correctly is one of the most important tasks.
Handy Aquarium Accessories and Devices
Handy Aquarium Accessories and Devices
There are many accessories and handy devices which can make your life as an aquarium hobbyist easier.
Types of Saltwater Tanks: Fish-Only, FOWLR and Reef Tanks
Types of Saltwater Tanks: Fish-Only, FOWLR and Reef Tanks
There are several different types of saltwater aquariums to choose from and each has its benefits and drawbacks.
Stocking a Brackish Aquarium
Stocking a Brackish Aquarium
A brackish aquarium is an exciting challenge for the aquarium hobbyist.
Tips for Keeping Nocturnal Fish in the Marine Aquarium
Tips for Keeping Nocturnal Fish in the Marine Aquarium
When the sun sets and the moon rises, the reef doesn't go silent - a whole new group of inhabitants comes out to play.
What Are the Biggest Saltwater Aquarium Mistakes and How Do You Fix Them?
What Are the Biggest Saltwater Aquarium Mistakes and How Do You Fix Them?
Cultivating a saltwater aquarium is a hobby full of exciting challenges, but sometimes those challenges can get the better of you.
Saltwater Aquariums
Saltwater Aquariums
A brief introduction to saltwater aquariums.
Setting Up A Saltwater Tank System
Setting Up A Saltwater Tank System
What to Consider before Starting.
Read more articles (11) Aquarium Maintenance (18)
Getting Rid of Aiptasia in Your Reef Aquarium
Getting Rid of Aiptasia in Your Reef Aquarium
Learn about aiptasia in the reef aquarium and how to get rid of it.
How to Remove a Mantis Shrimp From a Saltwater Aquarium
How to Remove a Mantis Shrimp From a Saltwater Aquarium
In this article you will receive an overview of what mantis shrimp are, how they can impact your saltwater aquarium, and how to remove them properly.
What NOT to do with a Saltwater Tank
What NOT to do with a Saltwater Tank
Learn what "not" to do when starting out with your saltwater fish or reef tank.
How to Modify PH in a Saltwater Tank
How to Modify PH in a Saltwater Tank
The pH level in your saltwater tank is incredibly important for the health and vitality of your tank.
The Benefits of Algae in Saltwater Tanks
The Benefits of Algae in Saltwater Tanks
Many aquarium hobbyists assume that algae in the aquarium can only be bad.
The Dangers of High Ammonia, Nitrite and Nitrate
The Dangers of High Ammonia, Nitrite and Nitrate
Water quality is extremely important in maintaining a saltwater tank.
Dealing with Hard Water in the Saltwater Tank
Dealing with Hard Water in the Saltwater Tank
When it comes to maintaining a healthy saltwater tank, water quality is extremely important.
Kalkwasser for the Marine Tank
Kalkwasser for the Marine Tank
Maintaining proper calcium levels is an important part of keeping your marine tank healthy.
Salinity Requirements in a Saltwater Aquarium
Salinity Requirements in a Saltwater Aquarium
The key to maintaining a healthy saltwater aquarium is to strike the right balance in the salinity of your tank water.
How to Deal with Marine Fungus in the Saltwater Aquarium
How to Deal with Marine Fungus in the Saltwater Aquarium
Fungal spores are present in all aquariums but, if you are not careful, they can become a problem in the saltwater tank.
Why Do Fish Disappear from the Saltwater Tank?
Why Do Fish Disappear from the Saltwater Tank?
There is nothing as heart-breaking as losing a fish but it can be even more devastating when the fish simply disappears.
Maintenance Schedule for Reef Tanks
Maintenance Schedule for Reef Tanks
Maintaining a reef tank can be a challenge but as long as you keep up with your routine maintenance tasks, you should have no problem.
Choosing the Correct Temperature for a Marine Aquarium
Choosing the Correct Temperature for a Marine Aquarium
One of the most important things you must to do ensure the health of your marine tank is to achieve and maintain the ideal temperature.
How to Solve Common Saltwater Tank Problems
How to Solve Common Saltwater Tank Problems
Cultivating a thriving saltwater tank can be a challenge but it is also incredibly rewarding.
Saltwater and Reef Tank Cycling
Saltwater and Reef Tank Cycling
Tips on cycling your fishtank.
Why is Water Flow So Important in a Reef Tank?
Why is Water Flow So Important in a Reef Tank?
Cultivating a thriving reef tank can be a challenge with all of the requirements you must meet.
Maintaining Your Saltwater Tank
Maintaining Your Saltwater Tank
Tips for maintaining a saltwater fish tank.
What You Need to Know About pH in Marine Aquariums
What You Need to Know About pH in Marine Aquariums
Maintaining proper water quality in your tank is essential but many aquarium hobbyists overlook one important aspect - pH.
Reef Tanks (13)
Set-up Guide for a Reef Tank
Set-up Guide for a Reef Tank
If you have ever considered starting a reef tank, read this setup guide to make sure you start your reef tank off right.
Types of Coral for Reef Tanks
Types of Coral for Reef Tanks
Stocking a reef tank can be a challenge because there are so many different types of coral to choose from.
Feeding Corals - Keeping Your Saltwater Invertebrates Healthy
Feeding Corals - Keeping Your Saltwater Invertebrates Healthy
If you want to keep your saltwater or reef tank healthy, you need to learn the basics of feeding corals.
Common Myths and Problems Regarding Nano Reef Tanks
Common Myths and Problems Regarding Nano Reef Tanks
Cultivating a nano reef tank can be an exciting challenge.
Bristle Worms in the Marine Tank
Bristle Worms in the Marine Tank
Dealing with pests is an inescapable part of cultivating a marine tank.
Recommended Species for Nano Tanks
Recommended Species for Nano Tanks
Cultivating a nano tank can be an exciting challenge but unless you choose the right fish for your tank, you may be in trouble.
How to Care for Marine Blue Sponges
How to Care for Marine Blue Sponges
The blue sponge makes a great addition to the marine tank.
Beginner Coral Species: Low-Light Corals
Beginner Coral Species: Low-Light Corals
Keeping corals in a saltwater aquarium can be challenging but these low-light species are perfect for beginners.
Reef Aquariums: Is Bigger Really Better?
Reef Aquariums: Is Bigger Really Better?
Cultivating a reef tank is an exciting but challenging task - learn more about choosing the right size for your reef tank.
The Top 5 Most Colorful Corals for a Saltwater Tank
The Top 5 Most Colorful Corals for a Saltwater Tank
With more than 2,000 different species of coral out there, how do you choose the right option for your tank?
Tips for Using Rockwork in Saltwater and Reef Aquariums
Tips for Using Rockwork in Saltwater and Reef Aquariums
Building a beautiful saltwater tank landscape out of rock is a challenge but with some helpful tips you can make it work.
Reef Aquariums
Reef Aquariums
An overview of the reef aquarium along with a short history.
What is a Nano Reef?
What is a Nano Reef?
Whether you are looking for a new challenge as a saltwater aquarium enthusiast or you are trying your hand at a reef tank for the first time, a nano reef is a great way to go.
Aquarium Lighting (3)
UV Sterilizers for Reef Aquariums
UV Sterilizers for Reef Aquariums
A UV sterilizer is a valuable piece of equipment to add to your reef tank or fish-only saltwater aquarium.
Tips for Lighting a Reef Tank
Tips for Lighting a Reef Tank
When it comes to maintaining a thriving reef tank the type of lighting system you choose is incredibly important.
Heating and Filtration (8)
How to Keep Your Saltwater Aquarium from Overheating
How to Keep Your Saltwater Aquarium from Overheating
Learn how to keep your saltwater aquarium from overheating.
What is an Aquarium Sump?
What is an Aquarium Sump?
If you are new to the aquarium hobby you may not be familiar with the term "sump".
Common Problems with Heating in Saltwater Tanks
Common Problems with Heating in Saltwater Tanks
Maintaining a stable water temperature in your saltwater tank is important for the health and well-being of your fish.
Foam Build-up on Saltwater Tank Surface
Foam Build-up on Saltwater Tank Surface
Foam build-up is a common problem in the saltwater tank.
Reverse Osmosis for the Saltwater Tank
Reverse Osmosis for the Saltwater Tank
If you want to keep a healthy and thriving saltwater tank, you need to start with high-quality water.
Wavemakers for Saltwater Tanks
Wavemakers for Saltwater Tanks
If you want to keep your saltwater tank healthy, you need to consider the ideal level of water flow.
Saltwater Aquarium Filtration
Saltwater Aquarium Filtration
The type of filtration system you choose for your saltwater aquarium is incredibly important.
What is Protein Skimming?
What is Protein Skimming?
Learn about protein skimming, why it's important, and which aquarists should use it.
Nutrition and Feeding (6)
Live Foods for Marine Fish
Live Foods for Marine Fish
Feeding your fish a proper diet is the key to keeping them healthy.
How to Raise Brine Shrimp
How to Raise Brine Shrimp
Brine shrimp are an excellent source of protein for aquarium fish and they are very easy to raise at home.
Tips for Getting Fussy Fish to Eat
Tips for Getting Fussy Fish to Eat
Feeding saltwater aquarium fish can be tricky, especially when your fish refuse to eat.
Top Commercial Foods for Saltwater Fish
Top Commercial Foods for Saltwater Fish
What you feed your saltwater aquarium fish will play a major role in determining their health and vitality.
Tips for Feeding Saltwater Aquarium Fish
Tips for Feeding Saltwater Aquarium Fish
What you feed your fish will determine whether or not their reach their full potential.
Nutritional Needs of Saltwater Aquarium Fish
Nutritional Needs of Saltwater Aquarium Fish
In order to keep your saltwater aquarium fish healthy you need to understand and meet their basic nutritional needs.
Saltwater Fish Diseases (5)
Good Medications to Keep on Hand
Good Medications to Keep on Hand
In the event that your fish become ill it is important that you take action to begin a treatment regimen as soon as possible.
Common Saltwater Aquarium Fish Diseases
Common Saltwater Aquarium Fish Diseases
No matter how hard you try, you cannot completely protect your fish from falling ill.
How to Treat Saltwater Aquarium Parasites with Freshwater
How to Treat Saltwater Aquarium Parasites with Freshwater
Parasites can quickly become a major problem in the saltwater aquarium if you do not address the issue immediately.
How to Prevent Saltwater Fish Diseases
How to Prevent Saltwater Fish Diseases
There is nothing quite so heartbreaking as losing one of your fish to disease.
How to Deal with Marine Ich in the Saltwater Aquarium
How to Deal with Marine Ich in the Saltwater Aquarium
Marine Ich is a common disease affecting saltwater aquarium fish and, unless you know how to deal with it, it can spread quickly throughout your tank.
Aquarium Decorations (3)
Creating Your Own Live Rock for Saltwater Tanks
Creating Your Own Live Rock for Saltwater Tanks
Live rock is the foundation for any thriving saltwater tank and it is the base for saltwater aquarium decor.
How to Cure Your Live Rock Before Placing it in Your Aquarium
How to Cure Your Live Rock Before Placing it in Your Aquarium
Learn how to properly cure live rock before placing it in your tank.
Stocking the Tank (27)
Stocking Salt Water Reef Tanks
Stocking Salt Water Reef Tanks
Learn how to select the right quantity and combination of fish for your saltwater aquarium.
Keeping Lionfish in the Home Aquarium
Keeping Lionfish in the Home Aquarium
The lionfish is a beautiful but deadly fish that makes a unique addition to the saltwater aquarium.
Establishing up a Clean-up Crew in Your Saltwater Aquarium
Establishing up a Clean-up Crew in Your Saltwater Aquarium
Learn how to properly select and establish a clean-up crew in a saltwater or reef aquarium.
Guide for Keeping Anemones in a Reef Tank
Guide for Keeping Anemones in a Reef Tank
Keeping anemones in a reef tank can be a challenge if you are not fully prepared.
Saltwater Species That Should Not be Kept by Beginners (and Sometimes not Even by the Experienced)
Saltwater Species That Should Not be Kept by Beginners (and Sometimes not Even by the Experienced)
Learn about saltwater animals that beginners (and sometimes experts) should avoid keeping.
Hermit Crabs in Saltwater Tanks
Hermit Crabs in Saltwater Tanks
Hermit crabs do more than just add decoration to the saltwater tank -- they can also help to keep your tank clean.
Commonly Available Reef-Safe Fish & Invertebrates
Commonly Available Reef-Safe Fish & Invertebrates
Learn about commonly available reef-safe fish and invertebrates that are good candidates for your reef aquarium.
Top Recommendations for Tank-Raised Saltwater Fish
Top Recommendations for Tank-Raised Saltwater Fish
When purchasing saltwater aquarium fish, you need to think about whether the fish are tank-raised or captive-bred.
The Benefits of Purchasing Saltwater Fish Online
The Benefits of Purchasing Saltwater Fish Online
If you are thinking about buying some new fish for your saltwater tank, think about purchasing them online!
Keeping Moray Eels in the Marine Tank
Keeping Moray Eels in the Marine Tank
Moray eels can be a challenge to keep in the home aquarium but they are well worth it.
Tips for Caring for Tangs Properly
Tips for Caring for Tangs Properly
Tangs are a group of fish that make excellent additions to the saltwater tank.
Marine Shrimp for the Saltwater or Reef Tank
Marine Shrimp for the Saltwater or Reef Tank
Marine shrimp can be a useful addition to the saltwater tank - just be sure to pick the right species.
Sea Urchins in the Saltwater Tank
Sea Urchins in the Saltwater Tank
If you are looking for a unique invertebrate to add to your saltwater tank, consider the sea urchin.
Why Are Tangs Some of the Best Fish for Reef Tanks?
Why Are Tangs Some of the Best Fish for Reef Tanks?
Tangs are not just some of the most brightly colored species of tropical saltwater fish - they are also great additions to the reef tank.
Understanding the Coloration of Saltwater Fish
Understanding the Coloration of Saltwater Fish
Have you ever been dazzled by the bright colors and bold patterns of a school of saltwater fish?
What's That? The Top 10 Strangest Looking Saltwater Fish
What's That? The Top 10 Strangest Looking Saltwater Fish
There are some odd=looking animals out there but these ten saltwater fish are among the strangest.
The Benefits of Snails in the Saltwater Tank
The Benefits of Snails in the Saltwater Tank
While snails are often viewed as a nuisance in the freshwater tank, they can serve a valuable purpose in the saltwater aquarium.
Choosing the Right Butterflyfish for Your Reef Tank
Choosing the Right Butterflyfish for Your Reef Tank
Cultivating a reef tank is a unique challenge, not only because caring for corals is tricky but because it can be difficult to find reef-safe fish.
The Secret to Keeping Seahorses
The Secret to Keeping Seahorses
If you are looking for a unique inhabitant to add to your saltwater tank, consider the seahorse.
Caring for Saltwater Gobies
Caring for Saltwater Gobies
The Goby family is one of the largest families of marine fishes, having over 2,000 unique species.
Clownfish in the Reef Aquarium
Clownfish in the Reef Aquarium
Clownfish are one of the most recognizable types of saltwater aquarium fish.
Tank-Raised Fish for Saltwater Aquariums
Tank-Raised Fish for Saltwater Aquariums
Stocking the saltwater aquarium can be an exciting challenge, especially when you have so many options to choose from.
Keeping and Breeding Mandarinfish
Keeping and Breeding Mandarinfish
Mandarinfish are a small, colorful species of saltwater aquarium fish.
Saltwater Fish Article Database
Saltwater Fish Article Database
Articles on dozens of saltwater fish and appropriate care.
Selecting and Caring for Saltwater Angelfish
Selecting and Caring for Saltwater Angelfish
Saltwater angelfish are some of the most colorful saltwater fish available.
What Are Good Saltwater Fish For Beginners
What Are Good Saltwater Fish For Beginners
What makes a saltwater fish a good candidate for beginners?
Sea Cucumbers for Reef Tanks
Sea Cucumbers for Reef Tanks
Sea cucumbers are found throughout the ocean but they are a popular addition to saltwater reef tanks.

READ AQUARIUM ARTICLES