...or at least I think it is?

I just got home with a plumpy dumpy. This whites has been at a small mom and pop store for a few weeks, in a 20g with a russian tortoise and a water dragon. After I gave the store owners a tiny scolding, I took him home. (At least I think it's a him, going to have to take a closer look and see how healthy he is, but didn't want to stress him out further.)

It didn't seem like he was eating too badly, since he's a porker. His eyebrow ridge is quite pronounced, and he's just seems chunky!

With my first Whites Tree Frog still on small crickets and a long way to go before he can buddy up with this beast, I am not too sure what the big guy's food intake should be, while still letting him shed some ounces. (The owner had no clue, just tossed in dozen crickets every night.)

I'll put up pictures as soon as he feels comfortable enough to come out of his leaf cubby. Any recommendations would be wonderful.