Hello - I have a 5 month old 40 gal aio. Parameters below. I’ve been testing every week to 10 days and my Alk fluctuates between 6.8-6.9 DkH. All other parameters are reasonable. I do 20-15% water changes every 2 weeks using reef crystals. Mostly LPS with some ricordea and Zoas. No SPS. Looking to get a little more growth out of the corals so I’m thinking of raising Alk to 8-8.5. Don’t have a dosing pump yet but Putting money aside for one. Any thoughts on what I can do to bring the Alk up. Do I need to do a 2 part if other parameters are reasonable? Sodium bicarbonate? Would greatly appreciate any advice/input. Especially if someone can point me in right direction to do more research. Thanks in advance.
Nitrate 12.8ppm
Phosphate: 0.05 ppm
Alk: 6.9 DkH
Calcium: 430
Mag: 1350
PH: 8
Salinity:35ppm
Nitrate 12.8ppm
Phosphate: 0.05 ppm
Alk: 6.9 DkH
Calcium: 430
Mag: 1350
PH: 8
Salinity:35ppm