So, a couple months ago I started up a 30g frag tank with a 10g sump. Currently there are about 30 zoa frags, a couple Acans, some snails, and a lawnmower blenny. Shortly after starting everything up I noticed my ALK was on the rise and is now topping out my Red Sea test kit which goes up to 14. If I had to guess past that point I would think it's probably somewhere around 15 or 15.5........
I have not been dosing anything and use Instant Ocean. I also run cheato in the sump and just recently (about a week ago) installed a dual reactor running carbon and gfo. Does anyone have an idea as to what is could cause this to stay this high? Also, what would you suggest as far as fixing it? Below are my complete readings:
SG: 1.023 (had been at 1.024 since the beginning)
pH: 7.9
Mag: 1340
Alk: 14+
Calcium: 400
Nitrates: 60 (I know, I know)
Phos: .03