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View Full Version : dosing kalk in saltwater


Jason7504
10/07/2009, 06:15 PM
i need to raise my salinity so i was thinking of top off with saltwater. but i also dose kalk in my normally FW top off. can i top off with saltwater to increase my salinity and add kalk to the SW?

Randy Holmes-Farley
10/07/2009, 07:04 PM
Nope. You cannot mix lime into seawater as you would with freshwater. You'll precipitate magnesium hydroxide and calcium and magnesium carbonates. :(