Catfish
Hi all
I have a 60L tank, amm. 0, nitrite 0, nitrates ~10. pH is between 6.5-7. It's planted, finished cycling a week ago, and has 8 harlequin rasboras, 1 oto, 5 red cherry shrimp and 1 panda cory. Substrate is 2/3 smooth gravel, 1/3 sand. Temperature is 23C - I've tried to bring it down to 22...