Aquaforest. AF Life Source, 500 ml.
We recommend that you use it a minimum of once a week, adding 10 ml/100 L (27 US gal) aquarium. To ensure that corals permanent access to the minerals dose in a high flow water, it contains valuable minerals and nutrients are permanently released into the aquarium. After dosing, the water will become cloudy, this is perfectly normal and not harmful for the tank inhabitants. Due to its natural origin, the product may contain pieces of coral reef, small rocks and other matter from the natural environment.