Hi guys, can someone please help me.
I have a 95l tank planted tank with 4 cardinals, 5 emperor tetras, 4 rummynose tetras, 6 harlequins, 4 corydoras and a pleco. I do partial water changes 2-3 times a week.
Water parameters are 0 ammonia 0 nitrites 10-20 nitrates.
4 of my emperor tetras have...