I was thinking of picking up some caulk for the new tank I pick up today and running a coat over the seams before I transplant everything into the new tank -- Any suggestions on the type of sealant? I'll probably stop at Home Depot to get it. Figure it will be easier to put a second layer on there before I put any fish in it. How thick do you put the second coat on? How long should I let it dry before I move the fish? Sort of in a crisis situation now with the leak being so big, can't keep the fish in this tank much longer.