I have been dealing with cloudy water in my 40 gallon fowlr aquarium. I have done numerous water changes , with little change. Today I tested my water, and it is , ammonia 0, nitrites 0, nitrates 12. The salinity is 1.021. I put in fresh carbon today, so we will see how that works. Anybody ever deal with this issue, and if so what did you do? Thank you


