Hey I wanted to know..as for replacing the water that I siphon out..I use "Stress Coat" when replacing the water in the tanks of my adult clawed frogs...I add the required amount of Stress Coat to the bucket, as I'm filling it with water...seems to be just fine for the adults. I have no storage containers or anything of the sort....so, when I change the tadpoles' water, can i add the Stress Coat to the new water, then put it in the aquarium right away? As I have no extra space to let water sit for a day or more...thanks everyone!