Seachem Reef Reactor Sand & Rubble They contain no phosphate or

They contain no phosphate or nitrate that would promote algae proliferation

made from organic acid and designed for promoting the growth of filtration bacteria

Ensures precise dosing of any chemical or supplement

Impeller only

Suitable for any aquarium

Seachem Reef Reactor Sand & Rubble They contain no phosphate orReef Reactor is a high purity source of aragonite, which supplies all important elements for optimal ionic balance and robust coral growth and coloration in reef aquaria. It has a grain size of approximately 1 3 cm for Reef Reactor Lg and 0. 5 1cm for Reef Reactor Md. It is intended for use in calcium reactors where it is dissolved slowly with the addition of CO2. It can be also be used as a substrate for reef aquariums or refugiums. As it dissolves,