Thank you for the reply. It is very appreciated. Out of all the videos and how to's I watched only one had mentioned dry lock. I did try to buy it at home depot and they told me they don't sell it in canada! U used self bonding concrete and sifted out all the fiberglass threads. I did let it sit for 2 weeks and rinsed for hours in a running shower, then changed the water 6 additional times before planting and letting my frogs go to their new home. I guess I am going to have to make a trip down over the border and find a safe sealing agent. I found it bizarre that in rainy Vancouver, BC I couldn't find a waterproofing sealant!
I have removed the 4th frog and have him in an emergency tank to recover. I really hope he makes it through the night or I will feel worse then I do now.. Which will be pretty hard!