I just wanted to give an update on my 75 gallon tank. I took advice offered here and drained my tank, changed out the sand, cleaned eveything up and refilled it using instant ocean reef crystals which is what I have. I know some have said to put down the test kits and just enjoy the tank but without doing at least minimal testing I cant know whats goin on with the tank. So When I refilled the aquarium, my KH was 9.2. Now, a week later it is 7.2. The only thinks in the tank are 2 clownfish and a cleaner shrimp. So I lost 2 dkh over the coarse of a week. Is this normal?
Thanks!