I started dosing Kalk again last week, and am noticing a MAJOR increase in slime algae, I sucked msot of it up during the PWC, but it is comin back in force the next day..any tips? and where can I get a good thing to dose it with, I am kinda on a budget, right now I mix it in with the RO/DI FW I use to top the tank off, and try to only add a bit at a time. I mix about 1-2 tablespoons of calc per 4 gallons of water, mix it well, let it sit a day with a small ph in the bucket, poor the water into another bucket to get rid of the crap left at the bottom, then run that for another day or so, then poor into the first bucket (after it has been cleaned) to get any residual solid matter out, and then I use that for topping off the tank.