Which Kalkwasser additive: store bought, hobby-grade, or USP-pharma? | BRStv Investigates

Today we share our results of our certified lab-grade ICP-MS testing results for six different Calcium Hydroxide (Kalkwasser) supplements to determine whether there are any differences between the additives you can buy from your local grocery store, aquarium grade options or USP/pharma grade materials.
Link to certified ICP-MS Kalkwasser analysis.
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Stay tuned as next week we bring you the third installment of chemical testing with the Magnesium supplements.
Get your water lab tested by winning one of five Triton ICP tests!
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We'd love to get your feedback and share it with the larger community over on Reef2Reef! Join the Kalk discussion below.
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Today on BRStv, we have a brand new episode of our series, BRStv Investigates. In this series, we explore popular reefing theories, products, methods, and what the manuals are missing, with a focus on putting them to the test!
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