ok i was moving the ISO tank out side to where i could clean is form the mold that was growing in side it and the bottom gave way!! luckly i was outside but the problem is i may need an iso tank soon.( 2 digging/eating crabs) i have no money that i can use for my crabs to get a new tank, so i put a piece of glass in between the non digging and the digging ( i was lucky the digging crabs choose that same side of the tank.) they are both in the same little area and i don' know if theyll hurt each other because their in the same area? the area that their in is 4x12. should i make it bigger?, don't know if i can. that main size of the tank is 12x30 Can any 1 help me?