I have my 12" black in a 150g with a 10" female Kamala FH, 11" Amphilophus Amarillo, 12" tiger Oscar, 4" midas, 6" Amphilophus Chancho. The FH and Amarillo have started their breeding process. The black pwns the top and the amarillos owns the tank. IMO my tank is not overstocked (not yet. when the fry are born then yes. lol). SO far so good. no one bothers the black cause he's to big. IMO it depends on the fish. trial and error. I had a jar in there and he owned everyone. I had a Lei in there and he did the same...I got rid of them both. I got another jar to replace the lei and old jar. This one is a lot more docile than the old jar and lei.
but the Jar is in a grow out tank with a school of silver AT's.
BTW my tank dems are 5'L x 2'W x 2'H
but the Jar is in a grow out tank with a school of silver AT's.
BTW my tank dems are 5'L x 2'W x 2'H
