Mineral complex ideal for reef / Malawi aquaria - In most cases, tap water is not suitable for aquariums with invertebrates due to its high pollutant contents: Heavy metals, pesticides, nitrates, phosphates, phenols, silica, silic...
Hard corals need Strontium as well as calcium to form their skeleton. In the ocean, currents provide all the necessary elements. In the closed environment of the aquarium, Strontium demand is constant so its input is necessary. ...