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I use BRS 2-part method to manage my alkalinity and calcium demand. I hand dose Mag.
I have a 75 gallon tank with a 30 gallon sump. After making water displacement calculations, I have total of 80 gallons of water volume. I'm currently dosing 50 ml/day of the ALK component and 50 ml/day of the Ca++ component.
50 ml/80 gal = 0.62 ml/gal is my ALK /Ca++ demand. My goal is to keep my levels close to natural sea water. DkH of 6.8-7.2 and Ca++ of 400-420. I carbon dose using a modified ZeoVit approach.
Is my calculation for ALK/Ca++ demand correct?? (0.62 ml/gal)
I use BRS 2-part method to manage my alkalinity and calcium demand. I hand dose Mag.
I have a 75 gallon tank with a 30 gallon sump. After making water displacement calculations, I have total of 80 gallons of water volume. I'm currently dosing 50 ml/day of the ALK component and 50 ml/day of the Ca++ component.
50 ml/80 gal = 0.62 ml/gal is my ALK /Ca++ demand. My goal is to keep my levels close to natural sea water. DkH of 6.8-7.2 and Ca++ of 400-420. I carbon dose using a modified ZeoVit approach.
Is my calculation for ALK/Ca++ demand correct?? (0.62 ml/gal)
@AdamNC I was wondering how steady is your pH? I currently use a CO2 scrubber to keep my pH btw 8.1 - 8.3. Prior to using the CO2 scrubber my ALK/Ca++ demand fluctuated drastically with out changing the demand. The pH would fluctuate btw 7.7 -8.0. My Mag was always greater than 1400, so that wasn't the culprit. If your pH is not stable at a range btw 8.1-8.3, I believe it is very difficult to get a handle on your ALK/Ca dosing. Dose anyone else have an opinion?
I noticed when I installed my co2 scrubber my alk dropped from 10.5 to 9.5 dkh , ph went up from 7.85 to 8.15. I was dosing 40mL brs two part per day. Had to adjust my doser to 50ml per day and now my alk adjusted to 9.5 dkh.. just going to leave it there and naturally let it drop as the corals start growing.. I don't feel like chasing numbers and increasing my two part any higher to achieve 12 dkh.. I'm wondering why so much of a big drop in alk when installing co2 scrubber? Possibly increased calcification rates!?
OK, BRS...I am a new reefer. I have a 65 g tank with a small sump because it is all my cabinet will accomodate. That will change when I have time to build a new one. All my numbers are within range, my skimmer and filter are running great. I have a refugium doing its job, but no room for a reactor in the sump. However, my DKH is 19, calcium is 460 ppm. I am not dosing, and have been doing water changes- most recently a week ago (25%). What can I do???
I'm using BRS 2-part dosers and seachem fusion 1&2, which are kept at a consistent concentration by a magnetic stirrer and dosed at the same time every day.
Hmmm... Are you dosing them both at the same time, or each has their own independent dosage time?