Hi Claude
Same dosing.
Dropping Bio to 4 drops weekly.
I will raise salinity to 34.
I use one litre of Carbon in a reactor. The reactor sits in the sump and only feeds back into the sump. In other words the carbon filtered water never goes in the main tank directly. The carbon reactor pump flows about 100 l/ hr. As for the Mg and Ca. My Mg has always been high and the Ca is due to the new salt being used. I could slow down the Ca reactor flow. But the Ca has remained constant( I have been testing this every day since I started using the new salt)
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