Alkalinity consumption rate

[TimT]

Originally Posted by asylumdown

I jumped the rate by 120 mL/day and readjusted the level manually. It took nearly 2 full cups to brink alk back to where it was yesterday, which is like 470 mL, but I'm too chicken to increase my dosing rate that much in a single day. I'll be upping the rate again every day this week until it stops falling.

Those dinner plate sized monti-caps are beasts.

When corals start growing quickly, especially monti's they can consume a lot of alk.

A few things to check.
Make sure your heater and the magnets on pumps are not encrusting calcium. Also check to make sure any sand is not doing it either.
Check your Magnesium, should be 3x calcium or 1350 to 1450. To low of a magnesium will cause calcium to bind to heaters, magnets, glass etc.

Cheers,
Tim