Disappearing Tetras

[TheManichaean]

I recently added new fish to my tank, 6 1.5" Australian Rainbowfish and 6 1" Congo Tetras.

Now, frustratingly, something in the tank is eating the Congo Tetras. They just disappear completely, no remains at all, every couple days.

I never see any aggression in the daytime, so I'm betting on the large (5.5") nocturnal loach as the culprit.

Now here's my question: could the 4" Bala sharks be waiting until the night to eat these guys? Could they be passive in the day and then hunt at night time? Or possibly the Snow King Pleco?

Any help is appreciated.

[/list]

 

[Guest]

Sounds like you need to choose between the tetras, or the loach, heh. I had a problem like that once, but with different fish. Also, it's probably unlikely for you, but you should check for the tetras in the filter...

 

[TheManichaean]

Thanks for the help. I think you're right about trading out the loach. I'll be sad to see the big guy go, but those Congos are really cute.