“Been using this product for a few months with good results. I don't have a bunch of mature corals so I have to factional dose it, but it maintains dKH, Cal, and Mag. Initially I had to bump up Cal & Mag each month, but once I got above a few mL per day I could stop. I check dKH weekly (Hanna) and Cal & Mag monthly (Hanna). I use a Ecotech dosing pump and a small reservoir. If you reduce your light to accommodate corals reduce the dose or the dKH will increase - reduced PAR reduced growth.”
