will chaca chaca's work in my 150g cube mbuna cichlid tank?

[TiffanyFinatic1]

i was thinkin of freshwater stingrays and flounder and soles and fresh water toad fish but of course they are brackish water fish and im not goin to stress out my cichlids so i can have them i would like to have an awesome odd ball that would work out. i want me and all my fish to be happy is there any sudgestions? plz give me ideas!
o and i was also thinking of the amazon monster fish they are the only full fresh water species of toad fish. google is not helping me

 

[toddnbecka]

Chaca chaca will eat cichlids.