It will be big, just saying. RTCs grow to an impressive 4 ft (and I've seen them that big in a massive tank in an aquarium) and even short-body paroon sharks can get a few feet in length.
They eat like pigs, always with big belly. But growth is unexpectedly slow, it has grown an inch only since the last time i posted (6.5" now).
One turns light colored and the other turns very dark. Will get a feeding clip next time