What is in my aquarium?

garyroach

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Sep 9, 2007
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Four weeks ago I purchased a brand new aquarium and accessories in a box. I washed the sand and the fake rocks that I purchased at the pet store and put them in the tank. Filled the tank with tap water. And added water conditioner, ammonia, and a bottle of Cycle. A week and a half ago I did a 50% water change and added water conditioner. Since then I add ammonia every day which reduces to zero. Now I'm waiting for the nitrites and nitrates to reduce to finish the cycle. Today I noticed for the first time that there is something living in the tank! It looks like a tiny worm swimming around. And it's not alone. There is another one in there too! What are these things and how did they get in there? :eek:
 
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sea monkeys? :)

baby mosquito larvae?

nitrates don't reduce the nitrates; bacteria basically eat nitrites and poop nitrates. other bacteria eat ammonia (from the fish poo) and themselves poop the nitrites one step before that.
 
sea monkeys? :)

baby mosquito larvae?

nitrates don't reduce the nitrates; bacteria basically eat nitrites and poop nitrates. other bacteria eat ammonia (from the fish poo) and themselves poop the nitrites one step before that.

Sorry. I didn't explain the cycle very well. I remember reading that now.

But, those little worms are freaky!
 
Are they floating around or in the substrate? That is interesting, is there a cover?

Also, Nitrosomonas oxidize ammonia to form nitrite, then nitrobacter convert nitrite to nitrate.
 
A couple people have suggested that they are nematodes and harmless. If they are still around when I finally get to put fish in the tank, free food! Until then, at least I'll have something living in the tank to look at!
 
Are they floating around or in the substrate? That is interesting, is there a cover?

Also, Nitrosomonas oxidize ammonia to form nitrite, then nitrobacter convert nitrite to nitrate.

They are about 1/16 inch and swim around like tiny worms. Yes, there is a cover, in fact two, which completely cover the top. But, I opened the lids to hopefully get some bacteria going after two and a half weeks with only ammonia. Now I'm just waiting for the nitrites and nitrates to drop.

Thanks for the clarification on the cycle.
 
bio-spira has been good for me; the theory there is that it's actually nitrospira bacteria, not just the -somonas & -bacter which do the bulk of the work.

basically it seems to have kick started the cycle for me. also i have a decent # of plants, which in theory may be taking up some nitrates. but i have a pretty light bio-load going in my tank still so maybe that's why i've really not seen any nitrates (or -ites) to speak of.
 
Im thinking its planaria, which in and of itself isnt going to harm your fish, but it is a sign the water conditions arent up to par..... sadly Im having much the same problem, I have little white worms(planaria) so i gotta figure out how to clean up my tank.... i also dont think my tank is cycled yet either.

fish will eat them.... i watch my betta pick them out of the water.
 
Im thinking its planaria, which in and of itself isnt going to harm your fish, but it is a sign the water conditions arent up to par..... sadly Im having much the same problem, I have little white worms(planaria) so i gotta figure out how to clean up my tank.... i also dont think my tank is cycled yet either.

fish will eat them.... i watch my betta pick them out of the water.

The ones in my tank are reddish brown and have grown from 1/16 inch to about 1/8 inch swimming and about 1/4 inch if stretched out and kind of thin and flat and pointed on both ends. They look like tiny little swimming ribbons.
 
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