Alkalinity dropping...

[big slick]

125 gallon, new tank (6 weeks old) right now, has 40lbs of live rock, 40lbs of live sand below crushed argo, and runs through a fuge with Mudd, caulerpa, and dead coral skeletons....all levels have "leveled" and I am using B-ionic both calcium and alkalinity buffer every other day. ( had a hanful of hermit crabs, 8 turbo snails, two clakis, and two Chromis)
Any ideas why alkalinity suddenly dropped off from good to low????

 

[a&m aggie 04']

can you post your calcium and PH levels ???

 

[big slick]

Calcium = 600ppm
PH = 8.4
Phosphate = 0.0
NO3 = 0
NH3/NH4 = 0
NO2 = .02

 

[big slick]

I know that I should have around 400-500 ppm on calcium for my reef tank. Should I quit using my Calcium buffer (B-ionc) and just stick with the alkalinity buffer (B-ionc compon #2) ??

 

[bang guy]

B-Ionic part A is the ALK part I think. Just back off the Calcium part (B) for a while and increase the part A until ALK is back up.