Are the CA and ALK levels steady at those numbers, or do they drop down to that? If they're steady, then the reactor would seem to be providing the correct amount to the tank, you just need to use a suppliment to boost the values up to what you want. After that the reactor should hold it there. If the levels are dropping back to that after you boost them, then you need to dial up the reactor a bit. If the levels are out of balance, the reactor will always maintain them out of balance. You need to use a suppliment for the low value to bring it in line.
My reactor was holding my tank at 350-360 Ca and 8.5-9.0 ALK. I wanted the CA to be higher but not the ALK so I dosed some turbo calcium to bump it up to 425. Now its holding there with no change to the reactor settings.
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I retired and got a fixed income but it's broke.
Ed
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50 gallon FOWLR, 10 gallon sump.
130 gallon reef, 20 gallon sump, 10 gallon refugium.
10 gallon quarantine.
60 gallon winter tank for pond fish.
300 gallon pond with waterfall.
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