I am trying to make a better effort to stabilize my tank as I build my reef. Currently the only coral I have is a green open brain, which is doing quite well, but I do have question about water changes.
Right now, I change about 2.5 gal
/week using oceanwater from my LFS
. This is about 7% (37gal tank). My concern is when I do the change, no matter how careful I am, tank temp drops from 80 to +/-74. Also, I am extremely careful about pouring the water, but is always clouds up the water.
I was thinking about starting to do 1gal water changes weekly which would be about 3%. Would this be too little of a water change?
Water params this morning be for the change were
Nitrate-less than 10ppm
Phosphate-less than .5ppm
calcium-+500ppm (quite high I think. I do not supplement)