Glowlight Tetra Problem

[balboa42]

Hi! I have 10 gallon fish tank with 2 ADFs, 2 onion snails and 3 glowlight tetras. I had 5 but I think my 3 tetras are picking on the others. They never bother my frogs or snails but the 3 biggest ones chase the smaller ones. My other 2 died weeks apart, always the same way, half eaten and laying on the bottom of the tank. Yesterday I went to get 2 more cause I know they get stressed when the school isn't big enough. I made sure I got the biggest ones in the tank. Everything seemed fine, than this morning I went to turn on my light and the 2 new ones are gone! Like nothing just poof and the smallest of the 3 is dead at the bottom of the tank. I don't understand. I read they were peaceful fish. I used to have a beta in with them but he died a few months ago, (from my 2 year old trying to get to him to pet him) they were fine. Once the beta died that's when they became aggressive. Now I only have 2 and want more to keep stress down but scared they will just kill them off. Help! How can I fix this and what could be the problem. Thanks.

 

[Byron]

First, I would suggest this may be the frogs.  I believe others have mentioned that they will nip at fish, and half-eaten would suggest this to me.  Second, a 10g tank is easily over-stocked, and I would suggest you decide if you intend keeping the frogs or not, and if yes, forget fish.
 
I doubt this is a cycling issue, which also occurred to me, since you mention the Betta, and the tank seems to have been running for a time.
 
Glowlights are generally peaceful, but like all tetra, if stressed their aggression will or may increase.  But I doubt that is what is happening here.
 
Byron.

 

[the_lock_man]

Can't argue with Byron.