FishWithFeet
Aquarium Advice Newbie
- Joined
- Jul 20, 2014
- Messages
- 3
I have a forty gallon tank that has been running for about two months. It grew algae within weeks, so the first fish I added was a Pleco. He cleaned the tank up and seemed healthy, so I added a rainbow shark and an African dwarf frog. The rainbow shark died within 12 hours, but the other two were fine, so I thought maybe the pet store had a problem with their rainbow sharks. I tried a clown loach next. Dead within 12 hours. I had the water tested and was told everything looked good. I tried Danios next. All three dead in 24 hours. I let the tank sit, with the Pleco and frog for about a week. They are both fine, so I tried cherry barbs. Dead in 12 hours. The Pleco and the dwarf frog are still doing well, but I really am starting to feel like a fish killer. The pet store is stumped as to what could be killing the fish, and why the other two are fine. I do have Mopani wood in the tank, and the water is slightly tinged by tannins, but I was told this isn't the problem and will resolve after several water changes. Anyone have an idea of what could be happening in my tank?