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This is very common practice, the tetras/barbs/livebearers act as "dither fish" for the cichlids, reassuring the cichlids that if there are fish playing above them happily, nothing dangerous is lurking nearby.
The trick is judging a good match of dither fish against the cichlid(s) in question, for instance you would not put a group of Beckford Pencilfish in with a pair of Oscar Cichlids, as the former would be "live lunch!" The dithers need to have similar water chemisty; temperature; water flow etc. requirements.
Black neon tetras would be lunch. Green tiger barbs might be okay. Like I said before, you're limited to medium sized, wide bodied fish, if that. Convict cichlids are very aggressive. It's a hit or miss with them. I couldn't keep my female convict with anything, even in a 75 gallon tank.This is very common practice, the tetras/barbs/livebearers act as "dither fish" for the cichlids, reassuring the cichlids that if there are fish playing above them happily, nothing dangerous is lurking nearby.
The trick is judging a good match of dither fish against the cichlid(s) in question, for instance you would not put a group of Beckford Pencilfish in with a pair of Oscar Cichlids, as the former would be "live lunch!" The dithers need to have similar water chemisty; temperature; water flow etc. requirements.
I have one small female black convict cichlid and I really want to put black neon tetras or green tiger barbs. It's a 20 gallon long.
Man.. I think I'll try the barbs. How about danios? Do they grow medium size?