Me and my daughter went out and purchased a glofish brand 3 gallon tank along with three 1 inch tetras. We set up the tank a day ahead of time let it filter overnight. We put in reverse osmosis filtered well water. We put in conditioner even though there's no chlorine in the water and we didn't need it. We added the fish on the second day of the. We used bacteria starter every day for the first 5 days. The water immediately started getting foggy and cloudy when we introduce the fish. It slowly cleared up over the next five days as we use the bacterial starter. On the 9th day one of the fish died and we noticed a flaky slime all over the bottom of the tank gravel. It was white in color. The filter had a greenish slimy consistency in it as well. Within 24 hours the other two fish died. We want to replace the fish but we're not sure what caused them to die in the first place. Does anybody have any information for so we don't make the same mistake again?