Is it a 20H or a 20L? What are the dimensions?
As a piscivore*, a dwarf pike cichlid might work in a 20L. Kribs would eat shrimp, but I don't think they'd go after WCMM after a certain length. And convict cichlid fry scare the heck out of me, I'm fairly certain they'd eat anything that tried to eat them...
I like a single regani pike for that tank. South American leaf fish might work, but if it doesn't eat all the convict fry they might be rough on it as they outgrow its mouth. It is hard to think of anything else that can actually stay in there it's whole life and eat all of those things. Clawed frog isn't a bad idea either.
20h
I would really love a pike.
Anybody know which would be best suited for a 20h? My tap ph is 7.2
Crenicichla regani
Crenicichla compressiceps
Crenicichla sp. ‘Orinoco dwarf’
Thanks
Pike killifish
a single dwarf pike
A single one of those should work, is it planted tank?