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Rac Grotech

Grotech – Calcium Reactors (RAC)

A German brand founded in the early 1990s, Grotech is recognized for its rigorous technical approach and reliable supplementation solutions in reef aquariums. Among its flagship equipment, calcium reactors hold a central place in demanding installations.

The Grotech RACs are designed to dissolve a calcareous substrate through controlled CO₂ injection, in order to maintain stable levels of calcium and carbonates. Their robust design, optimized chamber, and efficient internal circulation ensure homogeneous dissolution and consistent performance.

Appreciated for their reliability and ease of maintenance, these reactors integrate perfectly into modern reef systems heavily stocked with hard corals. They offer a durable and precise solution for stabilizing the essential parameters for coral growth in a marine aquarium.

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