[neilanh]

ugh - frustrated

A while back I realized my bioload was getting up to where I was seeing really low Calcium levels. Sparky convinced me it was time to start dosing 2-part. Been doing it slowly over the past month or so.

My issue is my Alk. My Alk has always been on the low side ever since my cycle completed. Initially it was up around 10 when I first setup the tank. Afer the cycle completed it dropped and held around 8. about 2 months ago it hit 7, and that's where it's been since, even since I started dosing. Tested with both API and IO test kits. Oh, all Alk readings in dKh.

I dose 2-part. I put in enough part B to raise the Alk by 1, and by the next day it's back down to 7 again. What's causing it to fall?

Tank Params:
temp 81
basics are all 0
Sg 1.025
pH 8.0-8.1
Alk 7dKh
Ca 400ppm (I know, still a bit low, not rushing it up)
Mag 1280

Other things you might need to ask me:
Reef Crystals salt
Aragamax sand
Do run GFO and Carbon
25% water change every other week