how bad will this end up?

[360º]

a friend donated a few baby fish and i just identified them and seems like one is aggressive and the other type isnt.

i got 2 Demasoni Cichlid and 2 electric yellow.... they're sharing a 29 gallon and so far so good

but i dont know

 

[mgamer20o0]

you mean long term or short term as grow out?

 

[360º]

i mean will they the Demasoni Cichlid being very aggressive kill the electric yellows?