I have a similar problem.
low pH 8.0
moderate dKH 11
high Ca 700 !
I have not added any calcium supplements for 2 weeks now. I have added SeaChem Reef Buffer at the recommended dosage to maintain my dKh and attempt to raise my pH.
Livestock in my 30gal tank consists of:
3 Monti. cap. -...
If you're still looking for a 300 glass, there's one in Temecula for sale, drilled with overflows on both ends, 1-1/2 " i think, also drilled for 1" returns, It was a dealers coral show tank.
I was in there yesterday and he offered it to me for $800....
...if I only had the room.
If you're...