[dingo85]

would this work in a 20 gallon.

6 serpae tetras
4 tiger barbs

Can i get away with anything else?

 

[remarkosmoc]

I would reverse it so you have 6 barbs and 4 tetras. Tiger barbs can be fin nippers if not kept in a bigger school, like 6 or 8.

 

[fishy714]

Tiger barbs likes to be in bigger schools. I would go 6 to 10 tiger barbs. And a small school of corys for the bottom.

 

[kornphlake]

A 20G would be good for a pair of dwarf cichlids, I'd do a pair of apistos, a half dozen tetras, 4 corydoras a BN pleco and a lot of live plants.