Sources of calcium carbonate

Carissa

Guru Class Expert
Jun 8, 2007
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Hi,
I'm just learning about how to properly fertilize plants. Seeing as how my water is extremely soft with no KH or GH, I need to add calcium and magnesium besides other fertilizers. I know I can use epsom salts to get magnesium, and baking soda to add carbonates, but what would be a good way to provide calcium? Is regular white chalk pure enough to crush and use? Or are there other easily accessible sources?
 

Tom Barr

Founder
Staff member
Administrator
Jan 23, 2005
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Caclium sulfate works better: gypsum

Or you can buy the GH booster from Alan: aquariumfertilizer/com

Regards,
Tom Barr
 

dealt

Prolific Poster
Sep 25, 2007
50
0
6
It seems like GH booster is often recommended. If it's not available, can magnesium sulfate, calcium sulfate and baking soda be an alternative? If yes, how much of each should be dosed for a 50g? Thanks!
 

dannyfish

Prolific Poster
Jan 6, 2010
40
0
6
Singapore
Tom Barr;17338 said:
Caclium sulfate works better: gypsum

Or you can buy the GH booster from Alan: aquariumfertilizer/com

Regards,
Tom Barr

i tried using calcium carbonate and my tank become cloudy....
is it normal?