Calcium chloride 250ml - Reef evolution Numerous reef organisms form their shell or skeleton in the form of chalk by synthesising the calcium and strontium that they extract from seawater. REEF Evolution Calcium helps to maintain or quickly increase calcium levels in your aquarium. THE REEF EVOLUTION RANGE A new approach to looking after your aquarium A full,...

QFI Element-MIX 5000ml Additive that provides minerals and trace elements. Dosage: 10ml / 100l. biweekly. The dosage is indicative and corresponds to a standard aquarium, with a normal biological load, each user must adjust their dosage to their needs.