nah man!! hehe these are my mates fish....my jar is like 22" now...his is 18" give or take a few...the umbee is roughly 6" and the dovii is 6-7" umbee shows signs of aggression every now n then but the jar puts it straight back in it's place...tis only amtter of time tho hehe, the jar n umbee are housed in a 150 gal fer now...plans are for a 400 gal...if only i had taken b4 pics, the tank was infested with black algae and looked terrible...tis amazing how good it came up tho...60 kilos og black gravel, 2 fake plants n a good clean!! he's stoked with the outcome!