Hydra

12 posts • Page 1 of 2

Discuss all topics related to freshwater and planted tanks.


a1k8t31524
 
Posts: 939
Joined: Sat May 26, 2007 5:10 am

Hydra

by a1k8t31524

any of you with planted tanks ever have problems with these things. i noticed i have them all over one of my anubus plants.....the look like little tiny sea anemones i red an article that said they are normally found in places where there are large amounts of live food present, now i have just recently started feeding my fish live brine shrimp but i just started last week
Also i noticed moss animals or bryozoans growing on my drift wood...don know what causes these
or how to get rid of either of them anyone have exp with these?
can anyone help?


Peterkarig3210
 
Posts: 1980
Joined: Wed Oct 24, 2007 3:04 am

by Peterkarig3210

I don't know about bryozoans but the hydras are really cool in my opinion. I've never heard that there was anything harmful about hydras and even my stepmother, who is a marine biologist, spoke about them in a way that indicated that they won't hurt anything in your fresh water tank.


a1k8t31524
 
Posts: 939
Joined: Sat May 26, 2007 5:10 am

by a1k8t31524

frokm what i read they are carnivirous.....eating anything that they can catch. mind you anything small enough would be either, fry or the brine shrimp that i feed. i mean i dunno i dont really have a problem with them but i am just wondering where they might have come from.


Peterkarig3210
 
Posts: 1980
Joined: Wed Oct 24, 2007 3:04 am

by Peterkarig3210

Probably from plants I'd guess.


a1k8t31524
 
Posts: 939
Joined: Sat May 26, 2007 5:10 am

by a1k8t31524

man that was quick.....and i see you finally have yourself a new keyboard...
hooray!!!!


Peterkarig3210
 
Posts: 1980
Joined: Wed Oct 24, 2007 3:04 am

by Peterkarig3210

Yup! New Radioshack delux model. I haven't seen a hydra in a while in my tanks. I think my fish or snails ate them.


ThisFish884484
 
Posts: 40
Joined: Sun Jan 27, 2008 4:20 am

by ThisFish884484

Hydras can usually harm fish under one inch and definitely kill fry. They also have no determined life cycle i.e. they will live as long as they have food and are not eaten. I have seen snails eating them in a friend's tank its note worthy though that the same snail eating them had one on his shell lol cant get that one. Eventually the hydra population in his tank died off maybe from the snails and maybe from lack of food.


Peterkarig3210
 
Posts: 1980
Joined: Wed Oct 24, 2007 3:04 am

by Peterkarig3210

They've never hurt any of my fish. I don't think they're parasites. They catch small bugs like an anemonieie does I believe.


ThisFish884484
 
Posts: 40
Joined: Sun Jan 27, 2008 4:20 am

by ThisFish884484

No they are not parasites but some can hurt you fish. Their stings are like a jellyfish some larger hydra's stings will be harmful to your fish if they are small like dario or neons.


Peterkarig3210
 
Posts: 1980
Joined: Wed Oct 24, 2007 3:04 am

by Peterkarig3210

Sounds reasonable.

Hydra

12 posts • Page 1 of 2

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