Tank size 90 gal, 4 Orandas and 2 shibunkins Equipment: 306 Fluval canister, 406 Fluval canister, large HOB filter, large air bubblers, large lava rocks. Annubias plants. ammonia 0. Nitrites 0, nitrates 20, ph 8.0, gh 3, kh 6, TDS 300-400.
Help please. I had 3 large orandas and a male and...