Good morning! A few days ago I tested my tank and it was perfect. I had two clowns, 2 scarlet hermits, and a blue long goby (can’t remember the actual name). I went to the fish store the next day early (had tested night before) and I bought two snails, and another scarlet hermit. I happened to test my tank and the ended up reading at Nitrate 25 and Nitrite 5. I got anxious and decided to do a water change and removed about 20%. I put the snails in and they were stuck to each other and then ended up immediately dying. I also switched out my filter. That night I didn’t realize the water was too high and the surface agitation was too low. I woke up to fish dying from lack of oxygen. I was able to save the fish and the crabs. The snails had died for sure. :( After I removed the snails my tank got cloudy. I thought it was this fake plastic Seaweed, but it keeps getting worse even after removal. It’s probably a bacterial bloom, but what do I do? I added clarifier-twice. My tank is about 3 weeks old now.
