Originally Posted by pbienkiewi
I love Kalkwaser. It adds calcium and will keep the Ph up. It needs to be dripped slowly because it has a high ph. I believe the Ph is 14.
With the low calcium try doing a 15% to 20% water change. See if that will fix your calcium.
How big is your tank ?
most important what are your readings ? salinity, temp, Ph, Alk,Nitrate, nitrite, amonia ?
46 gallon tank. I do 10% weekly changes and it hasnt gone higher than 360. parameters are: ammonia 0, nitrite 0, nitrate 10, ph 8.4, alk 9.0, sg 1.024, temp 79-80