Top-level fish suggestions?
I recently introduced a school of 8 tiny kubotai rasboras to my 25 gallon bowfront. This tank also contains 5 red phantom tetras, 5 gold laser corys, and 6 cherry shrimp.
Everything was going well for about a week, until one night, when I turned down the lights, I noticed the tetras chasing the rasboras and nipping at them. One rasbora actually lost a piece of its tail, so I decided to move them to my 20 gallon cube which contains only 6 panda corys. The rasboras seem happier & more relaxed, but I miss seeing them swimming in the top half of the 25 gallon.
My question is, can anyone recommend small top-dwellers that can hold their own against my red phantoms?