Cal, Alk, Mg in established systems

[KevinK]

hmm,

why am I using so much,

baking soda 590gr/gallon mix in 5 gallon can (3 gallon mixed up at a time), I dose about 620 ml a day – spread out over 8 dosing's

Calcium:

I was mixing 500 gr/gal mix in 5 gal can (3 gallon mix at a time) dosed about 610 ml a day – spread over 8 dosing’s

but Calcium was rising and had lots of precipitation, so went with 20% less calcium at the same gallon and dose the same ml at this time

I changed and went lower on calcium yesterday so have to se upcoming week – weeks to find out if this is better


I have about 400 gallons of water in my system,

70% SPS and 30% LPS

tank is about 2 years, SPS corals are medium size