It sounds like a good idea, but I'm gonna warn you, a fish tank is really heavy when you have to clean every 3 days, and with dividers it won't dump very easy.
You'd probably be better off buying some tubs for 3 dollars each at home depot and putting mesh in the lids.
Tubs aren't an option. My room is very small, so tanks is all I can have (and I can barely fit those in on preexisting shelving). Besides, shop vacs work great for cleaning out tanks.
1.0 Western Slender Glass Lizard; Logos
0.1 Charcoal Cornsnake; Morana
1.0 Golden Gecko; Smoothie
1.1 African Plated Lizard; Cypher and Nara