- Location
- Long Island
My 125 reef is looking great. Everything is big and expanded. Have not completed a water change for 6 months, aside from replacing evaporated water. So, I feel guilty and proceed to empty and clean my sump, about 20 gallons. Now my tank looks hurting, I know everything will come back, and yes, I should use RO water, but I wonder what is in the water that impacts coral quickly, and is probably killing us slowly.....