john arnold
Member
Hello
I EI dose but found some fish do not like 50% water change, marble hatchet fish, threadthin rainbows, and it sometimes kills them, is it ok to do 30% water change weekly, my Api kit says poss 60-80 ppm nitrates i know the kits are supposed to be crap but if i test the tap water and get a reading of almost zero and other tank that i do not ei dose is showing low ppm then it must be true that nitrate is higher in my EI tank ?
I EI dose but found some fish do not like 50% water change, marble hatchet fish, threadthin rainbows, and it sometimes kills them, is it ok to do 30% water change weekly, my Api kit says poss 60-80 ppm nitrates i know the kits are supposed to be crap but if i test the tap water and get a reading of almost zero and other tank that i do not ei dose is showing low ppm then it must be true that nitrate is higher in my EI tank ?