Raising magnesium to control algae

[stevedola]

Ive been trying to raise my mag with esv magnesium and its taking a long time (5days) to raise it 150ppm. Ive been dosing 125ml a day to a 75g with 20 sump/20g fuge. I started at 900ppm and its now about 1050ppm. Should I be using something else to raise it? would rather not alter any other peram. other than mag. suggestions?

this is not to battle HA but rather to simply increase my Mag levels which I think has decreased my Calc levels to 340. Id like to get my mag up to 1400 + calc up to 420 which is where it used to be prior to stocking additional SPS colonies.

[Randy Holmes-Farley]

This calculator shows much is required. It is a huge amount. Limit the rise to 100 ppm per day, IMO.

Reef chemicals calculator
http://home.comcast.net/~jdieck1/chem_calc3.html

[stevedola]

wow 3800ml of esv mag and 2200 of bionic? dang no wonder why people use that cheap magflake.

prolly better off doing large WCs and then testing and dosing. might help.

alternatives>?