Dow Flakes or similair cheap CA alternative

[Chin_Lee]

Originally Posted by seashells

Have you actually used pool calcium (calcium chloride) in your tank? This is usually a very corse product that does not desolve easily & actually creats quite a bit of heat as it disolves.

Yes specifically Dowflake 77-80% Calcium Chloride. Not that hard to dissolve, yes creates heat upon getting wet with water.