The ReefBox Posted February 10, 2016 Share Posted February 10, 2016 So here are. My parameters Alk 7.7 Cal 490 Mg 1350 Nitrates 10 Phosphates .25 Salinity 1.025 Temp 78.1 Thoughts on raising alk to 8.3 how to do on Apex? My set points are If ph above 7.70 then solenoid on if ph is 7.55 then off. Would this present unbalance lead to precipitation? Quote Link to comment Share on other sites More sharing options...
caolewis Posted February 10, 2016 Share Posted February 10, 2016 (edited) Looking good except KH. Bump KH up to 8.5-9.0 range by giving more C02. Apex is used to prevent solenoid malfunction to swing KH too high ( too low of KH when solenoid is dead :-) ). if ph above 6.5 then ON, less then 6.4 then off ( KH high, Reactor's PH dropped. KH low, Reactor PH raised). Raise or lower KH by giving or reducing CO2 gas using the CO2 knob on solenoid. I have 2 PH probes, 1 in sump and 1 in reactors and I view them daily on my phone to make sure things are running well ( so is temp and salinity ). My sump's PH around 8.2 and my reactor's PH around 6.8-6.9 range. Edited February 10, 2016 by caolewis Quote Link to comment Share on other sites More sharing options...
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