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What type of filter should I use??

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What type of filter should I use??

Postby 6ATREYU94352 » Thu Jan 17, 2008 5:14 pm

I have a 55 gal. tank, currently I have a hang on filter system. My tank seems to be cloudy. I only have 2 koi fish one is about 7-8 inches the other is about 4-5 inches Im probablly over feeding them which Im slowley decreasing. Im doing 15 percent water changes weekly that seems to be helping i was considering a canister filter I've been researching and im still undecided?? any info would be great.

Oh yeah I'm new to this site, So greetings to all!!

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Postby Mattallica874353 » Thu Jan 17, 2008 11:38 pm

Ive got a 60gal bow front with an Oscar and Chocolate Cichlid. I havnt had any problems in terms of cloudiness, but for filters I use 2 side filters; an AquaClear 150 and 300, as well as an undertank filter which is absolutely awesome. Its a Fluval 205, and Ive had no problems whatsoever, even though my fish are perhaps the messiest fish on the planet. I also do 25% water changes once a week. I'd try getting an undertank filter, or replacing your filter media.

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Postby Peterkarig3210 » Sat Jan 19, 2008 4:16 am

Sounds to me you are over feeding as you surmise. I like canister filters partly because they don't require the tank to be 4-6 inches from the wall, but their cleaning is a little harder than what you have. Coy get large, so even if you decreace the food I would go for adding another filter and possibly getting a bigger tank (the filter is the main thing). You'll probably need to get the cycle going again as you've probably killed the benneficial bacteria, so I would buy some live bacteria and use that in combination with water changes with chloralamine/chlorine/slime coat conditioner to prepare tap water. Peter

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Postby getwithit » Sat Jan 19, 2008 8:50 am

i have a 55 gallon i have a penguin 350 and a under gravel jet system on the opposite side. works great for me nice and clear. i wouldn't recommend getting anymore fish cause the koi get huge. try pellet food that should keep the food off the bottom. still unsure of the big deal with the canisters they cost twice as much for the same flow as the hang-ons. the only thing i can see with the canister is that you can make a jet from the return line.....but not necissary at all for a medium tank. i actually don't know how much to actualy feed koi simply cause they are so round and heavy. but the general rule of thumb there is as much as they can eat in 3 min with out the food hitting the substrate.
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Postby cyndrine » Thu Jan 24, 2008 9:00 am

what type of hang on system? I was using a whisper 60 in my 55gal with cloudy water all the time even being careful how much i fed the fish. I bought an aquaclear 70 and am running both and now have crystal clear water.
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Postby Peterkarig3210 » Thu Jan 24, 2008 9:59 pm

I agree that there's not a lot of difference between canister filters and hang-on filters in terms of biological and particulate filtration. I just like the out of the way aspect of canister filters. I don't get what's so great about the Bio-wheel type. It appears to have both slide in type filter pads as well as the 'wheel', which adds extra biological surface area, but why this is better than a hang-on filter with bigger pads I don't know. I would imagine the 'wheels' cost more than the pads to replace so that is one thing I don't think I'd like about them. I have Tetra hang-on filters as well as canister filters and the hang-on ones have both slide in pads that you can fill with charcoal and a pretty cool system that periodically dumps in the water after it goes through an extra sponge of biologically promoting material, and it also has a replaceable built-in heater that is shielded against overheating when there is no water to keep it cool which is very nice. I've blown many heaters when I've forgotten to turn them off during water changes so that sold me on Tetra hang-on filters. So, I really think the main thing is to look at how much surface area your filter provides for beneficial bacteria to grow and thus clean the waste the fish and other organisms produce from the water. The black sponge material and I guess I've seen white sponges of different pore size look to me to be a very good substance to grow bacteria on, I would think better than cotton type pad or bio-wheel material, and also the other things like ceramic stars, tubes, etc that go in canister types which can't be put into hang-on filters. Many canister filters are awkward or messy to clean I admit, but they're still my choice for best filtration and looks, and I'm not always buying new filter components when I go to the aquarium store. PS I love you quote 6atreyu9 "Bombing for peace is like f**king for virginity".

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Postby 6atreyu9 » Mon Jan 28, 2008 1:57 am

i greatly appreciate all the info i like consulting you guys b4 any pet store you all rock!!!
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Postby prskiller » Mon Jan 28, 2008 4:43 pm

I'm planning on getting a Penguin 350 HOB filter for my 75 gallon tank which will house 1 Oscar and possibly 1 Pleco. I will get another filter once they start growing in size and was thinking Marineland Cascade 1000 canister filter. What do you think, will those 2 filters do? Or maybe 2 Penguin 350???
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Postby 6AtReYu94350 » Fri Feb 29, 2008 12:18 am

i ended up getting a penguin bio wheel rated for a 75 gallon tank i have a 55 gallon seems to be helping alot if anyone cares!!!

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Postby spongebob4460 » Fri Feb 29, 2008 1:03 am

The wheels on the biowheels do not ever need to be replaced, they house the beneficial bacteria and if ure cautious when you change your filter cartridges, no waste should ever reach the wheel, only filtered water. I buy my cartridges in bulk of 6 and it comes to about $2-3 a cartridge, not bad for one month cost.... some people clean them off and keep using them for a few months if they dont need the carbon for any bad odors. I change them monthly regardless... worth the $2 for fresh carbon and zero waste on the filter IMHO.

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Postby Snowboss4492 » Fri Feb 29, 2008 2:29 am

My step father has 5 koi in a 30 gallon tank {we pull them from a shallow water feature in the winter - -but anyway - he has minimal substrate and is running an undergravel filter with a smal HOT filter - -and the water is crystal clear - -i think in the case of large waste producing fish the under gravel seems to work nicely - -also he is feeding pellets as opposed to flake food so the advice given about food and UG filters is working in his case.

On the bio wheel - -i thought long and hard about buying one - -circumstances have changed and I'm upgradeing to a bigger system shortly with a sump - -but the LFS i dealt with had some biowheels that have been running for over 5 years without replacement - -the theory of benifiecial bactieria seems pretty solid to me - - and as a salt water guy that is important - -but i didn't end up with one opted for a skimmer instead on this 20 gal tank - -just the Snowboss's thoughts - WELCOME 6atreyu9 !!!!

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Postby freshwaterpleco » Fri Feb 29, 2008 3:52 am

I would get a canister filter with layers of medis for the filter. Also if the waters cloudy you must be over feeding them. Or one deadly thing...

Draining 50 percent of the water should cure the problem
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Postby Zambize4899 » Sat Mar 01, 2008 3:50 am

I only have a 28 gallon tank but I have 6 fish and two frogs in it. I feed every other day, including some bottom food for the frogs. I use a Marineland Penguin Bio Wheel 150 and love it.


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