Brightwell Kalk+2 450g and phosphorus

and phosphorus

The latter two processes occur more rapidly than with other micronutrients

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High protein content

The principle is the same as it was decades ago

Brightwell Kalk+2 450g and phosphorusCalcium, Magnesium, & Strontium Supplement for all Marine Fish & Reef Aquaria Overview Contains calcium, strontium, and magnesium in the same ionic ratios found in aragonite. This unique feature increases the usefulness of Kalk+2 to reef building invertebrates such as corals, clams, calcareous algae, etc. Provides temporary alkalinity and helps maintain pH within the desired range when used as directed. Adds no conservative elements, such as chloride,