Reef Safe Fertiliser®

MADURA REEF SAFE® is a natural fertilizer, organically certifed containing Dicalcium Phosphorus, Calcium and Silica. It is formed from dicalcium phosphate layers generated by the interaction of the remains of coral, seabirds, fish and seaweed. Need organic fertilisers high in Silica, Phosphorus & Calcium? Then this is one of the best fertilizer products to use as it contains very high amounts of available Phosphorus, Calcium and Silica. REEF SAFE® is a very well-suited organic fertiliser for problematic areas where leaching of "P" is an issue. The continuous release action of Phosphorus from REEF SAFE® may be more significant in the lighter coastal soils, in the high rainfall seasons.

Data last updated 02/06/2026.