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So, I had a sick DG, and I cleaned the tank with a bleach and water solution, got rid of the old gravel, rinsed the plants in tap water. I believe chlorine in the tap water killed any virus, yes? I rinsed the filter, and ran the tank for a week. I didn’t want to throw the nice cycles filter medium away because shouldn’t the virus be essentially gone in an empty tank- nothing to live on? I want to move my Betta into this tank. I believe I’ve read that Betta are susceptible to DGD because they are both labyrinth fish. Think my tank is safe?