You don't need to flush them. There are plenty of stores in Toronto that will take your adults for credit, or at least take them off your hands and house them in a larger tank. PM me if you want some names.fuhreakz said:I say its too late because my tank seems to not be long enough to house all the fish I have. I don't think my LFS takes fish back as I've had them all since august. I just don't have the heart to flush the buggers.
A 36" tank is really best with one species of mbuna - two at the most - in the 1/4 ratio suggested by DJRansom.