So I take care of a tank at an office, and it is planted, with CO2, plants are growing fine, there is no ammonia, we have a UV sterilizer on it, and we run purigen. We use eco-complete as a substrate and the plants are growing like crazy. We have fish dying more than we would like. Maybe a few a week, yet we have plenty of fish that are not dead. And often amano shrimp and nerite snails die.
I run a canister filter and a small powerhead on the tank. It is 44 gallons, we have a AI Prime over the tank.
The tank is often a bit cloudy. A light haze or foggy to the water, always. It seems cycled and has been running for months now.
I do weekly water changes on it and never read ammonia. I am not sure why.
I added the purigen recently (last wednesday) because I thought that may help. But nothing yet.
I plan to go test more to get more updated parameters tomorrow. I also ordered an iron test kit.
I am wondering if iron may be the cause. We use tap water and I am curious as to if the tap water is the issue. May there be iron in the tap water?
Looking for advice, I am lost. I have never had these issues in planted tanks.
My tank looks likes this always
I do not ad iron but I do use tap water that may contain iron. I am going to try testing iron in the tap water with a seachem iron test kit.
Maybe I will switch to using RO water?