Need help guys, my 60 gal tank has been up for close to a year now, all of a sudden my herit crabs are not moving at all, they are staying in one spot for 6 days now.
nitrite, ph, and amonia is perfect
nitrate is around 10 --did a water change a few days ago and has not moved from 10, plan to do another 10% water change today.
the only strange thing is that my calcium is very high around 600. I have not dosed with calcium for over a week now and levels are still the same. (could this be the prob?)
I have about 70lbs of live rock, 3 fish; 2 clown and small Yellow Tang
and some corals(hammer head, torch, clams)