Wow, those are some big boys. The size of a dinner plate! They make the 1 foot ruler at the bottom of the second pic look like a toothpick; made me do a doubletake. Nice job on growing them out.
What do you feed them and how often?
I have 8 and they are bottomless pits. Mine always look thin to me even though I feel like I feed them a lot. They seem to have crazy fast metabolisms.