Thanks Colin! They are looking better each day. The only thing that died so far was the snails. They all were pretty much unresponsive for a few days and my large one wouldn’t hide in its shell if I picked it up so I’m sure that he’s dead. Thanks again for the advice!
My heater that my dad had sitting around and he wasn’t using was made of glass. I adjusted the heater in the fish tank and it must have broke when I was doing so. I woke up in the morning and saw that the heater was broken and a greenish Black substance was float above he water (a small amount...