Hi I just started dosing Coral a b and e I know I'm missing v just haven't got the time to get it yet. Can I still dose a with out v? do I have to shut skimmer off to dose those 3 or do I keep it going. Also how good are they? I tried finding reviews but only brings me to online stores selling but have no reviews. So I actually don't know much about them other then my Los telling me it's a good product. I have a 125 reef tank mostly softies and maybe 5-6 Lps frags. Never dosed before just the regular mag cal and all dosing using a dossing pump.