Need Kalk Top Up System Suggestions

[PzReefer]

Originally Posted by ron101

Tank is 90 gallon soft and lps coral tank and will stay that way. Compared to what other reefers dose, my tank seems to have high Ca and Alk demands. Magnesium might be low and I have been meaning to measure it but Mg kits have been backordered at J&L for some time (time for a visit to a different store or mail order).

J&L now have most Elos test kits, and have plenty of Mg kits there. Salifert kits are becoming scarce of late due to a number of reasons.