gulper catfish growout

http://www.aquabid.com/cgi-bin/auction/auction.cgi?fwcatfish&1484932212 sweet gulper catfish on aqua bid. how big do they get? the only thing I know is that they frequently eat fish their size and longer!really cool thought!

How would a gulper catfish do with plants, I haven't seen one in a planted aquarium and haven't heard of it. And how about bull head, blue cats, channel cats, and flatheads? So how would they do with plants?

I just got a gulper catfish of just 8cm , it has over the last two days eaten two goldfish at about 8 10cm . the meaning of my gulper catfish, is that I want to make some grow up videos, so you can see how much it eats, and the grow rate of the fish. hope you will welcome my video . will try...