Beginner Freshwater Aquarium
Ok so yesterday morning my water was fine. I had tested my water (Ammonia: 0, Nitrite: 0, Nitrate: 0, pH: 7.6) and did a weekly water change of 50% (normally I only do 25% but I decided to use the cycled aquarium water for another tank so I could separate a nippy dwarf gourami from my betta)...