So tank is a reefer 525 lots of sps frags and some lps dosing reef zelements (I’m in the uk) every hour 24hrs a day not sure if you have it in the USA also dosing kalk via a stirrer with apex and dos set to dose when ph hits 8.35 my question is I keep having my trident read a dip in alk every night then it nearly bumps back up to where it should be any ideas why this is happening as I would have thought the 2part dosing 24/7 then the kalk basically starts 3hours after lights outs would have raised the alk! Any help with this would be great