Best Calcium additive
My 29g tank has Calcium at 370 ppm, and Alkalinity at 11 dkh (both with Salifert kits). I need to dose calcium and wanted to see if there are recommentdations for a particular product. I am considering one of the following:
- Salifert Coral Calcium
- Kent Liquid Calcium
- Seachem Reef Calcium (contains polygluconate, not recommended ??)
Thanks
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