dosing confusion

I would work on getting your cal and mag up to acceptable levels. 440 and 1320 respectively. Keep an eye on your alk while you dose cal and mag because it will tend to drop and you don't it to swing more then +/- .5 meq/L (1.4 DKH).. Be sure not to get carried away with your dosing.. Does BRS have a maximum recommended dosage per day??

One time my levels were low like yours. I dosed the maximum amount recommended per day and it took some time (maybe 3 weeks) to get my levels up. I didn't have a single loss and was happy with the turnout at the end.. While dosing, I went VERY SLOWLY introducing large amounts of supplements into my tank..