Hi Niki & everyone,
My water parameter is getting much much better, but I don't know why it is a little yellow. Not sure it causes from high in Nitrate? Please advice on how to bring down Nitrate value and fix the yellow water issue.
Ammonia: 0.1mg/ L
Nitrite: 0.5mg/ L
Nitrate: 100mg/ L
BTW, when I got back from 4 days business trip, my purple firefish and Lipstick tang are also disappeared and couldn't find any left over, what is that suppose to mean? No sign of jump off and none in filter.