I discovered from this forum that I actually own one of these. It was meant to be a Queen Arabesque but I was sold the wrong one, not that I'm complaining!
As far as i know they grow to about 5" max. He's in my community tank with 2 Bristlenose, a Candy Striped Pleco and a Leopard Frog Pleco as well as community fish, tetras, harlequins etc. My tank is 21g and heavily planted with plenty of bogwood, some rock and some slate. I've not had any problems with him being aggressive and all the plecos stay out of each others way. The fish are due to be moved to a bigger tank in the next couple of months but as they are all quite small still, they are fine at the moment.
Not sure how long the king Tiger Pleco lives so maybe someone else can help you out there. His favourite spot is in a little slate cave I built for him, doesn't really bother with the bogwood. I feed him algae wafers and on occasion some cucumber. He also likes bloodworm and daphnia when I use it to feed my other fish.
Again, not certain how hardy they are but he came to live in the tank when it had been running for about 6 months so it was fairly matured.
Hope this helps!
