[drtango]

Gary-

Any issues with alkalinity? Before I dialed in a dose (30-40 ml in 40 gallons of RO topoff) I did notice a drop, and on one occasion did manage to get something rather hard and white complexed on my glass. No ill effects noted among fish or fauna. If I dose again, I'm gonna try the 10 micron filter. I think the magnum pleated filter is 10 micron, might try dripping into that.

John