- Reaction score
I have a 30g tank with an ac110 for filtration. The tank has been running for a couple years now. I recently changed from gravel to sand about a week ago after most of my fish died during a wc. My readings are ph 8.2, ammonia 0, nitrate 0, and nitrite 0. My current stock includes 1 gold gourami and 3 juvenile rainbowfish. Is it safe to add more fish?