I got a tank from a pet store in which the said a frog had been diseased in the tank for a month plus. The frog was dead ON TOP of the substrate, and wasn't touching the glass. I took the tank outside and power washed every area of the tank with my hose. I then used soap and water and pressure washed again. I want to put a leopard gecko in the tank, so would it be safe. The dead frog didn't have any maggots or anything, just dried up.