Looks good. Impressive 'flying stock tanks' !
Are you going to put vertical supports on the long sides of the stock tank shelves? I would be worried about putting all that weight up there and hanging it from ceiling joists. Ceiling joists are usually not over engineered enough to handle that much weight.
It's hard to tell from the pics. How much room do you have above the two stock tanks? Will you ever have to maintain what's in them?
How have you attached them to the walls? Screws, nails or lag bolts?