Current levels as of this afternoon:
calcium - 420
nitrate - 10
phosphate - 0
ph - 8.2
I checked the phosphate on the water that I will use to do a pwc
- levels are 0. I assume this means my nitrate/phosphate issues and therefore, diatoms are coming from my food. I am now at day 11 with no water change. Diatoms are a bit better but still definitely an issue. What next guys?
To answer earlier questions, yes I do think the closed lid is contributing to my problem but . . . if I leave it open (remember I have a 24 gallon Nano and it's in my classroom - very dry air) I have major issues with evaporation. I already do top offs pretty regularly (when the heat was on, everyday) with RO
water. Do I deal with evaporation to increase oxygen? I do have a Koralia pump in the tank for extra flow. I forgot to mention that. I don't have it directed at the bottom because it blows sand around all over my corals. Its about a 1/3 of the way from the bottom to try and keep dead spots from developing.