Jack Dempsey & Tank Mates!

Hello everyone!

I have a young Jack Dempsey in a 53 gallon tank.

Here are the dimensions:

39.4 X 15.8 x 19.7 INCHES

I know he is going to grow to 8 - 10", and I think he'll be ok.

I also have a Clown Pleco in there.

I'm well aware that a Jack is very aggresive, and that he is an
unpredictable sort.

Given my tank size, what can I get away with without stunting my fish
or making them miserable?

I'd estimate my Jack Dempsy is maybe two to three inches at most.

I was thinking of a young pair of convicts - but I'm open to all
reasonable ideas.

Are there dither fish I can get that won't end up as lunch?


Thanks in advance,
NSP