Originally Posted by Sniperhank
Sounds like all these issues are coming out of disturbing that 7 year old sandbed. Just do large water changes and it should all come down. Siphon out the cyano
before changing the water. It'll take a month or 2 to get it under control.
+1 to all that
I had similar diatom issue when I moved my 110 gal
tank. Stirred the sand and diatoms bloomed.
I WOULD stop feeding the corals unless you have any non-photosynthetic corals. They are fine with just the lights.
It is amazing how much it takes to raise Alk
. My 110 takes about 40 ml just to raise it 0.5 dKh
. Are your tests measuring in dKh
Ratio is 1 Meq/l = 2.2 dKh
. So if your are measuring in meq/l then your lower range is around 3.5 meq/l