Widely Used Elements Brightwell Potassion 0 Review(s)  £13.85 Brightwell Aquatics Potassion - Highly concentrated liquid potassium supplement for the planted marine aquarium, which provides one of the most important nutrients for healthy macroalgae growth. Potassium is an important component of aragonite, the mineral secreted as skeletal material by corals and other reef-building marine organisms. Add to cart
Out-of-Stock Widely Used Elements Brightwell Reef Code A 1 Review(s)  £9.85 Brightwell Aquatics Reef Code A is a balanced calcium-bearing component of a two-part method for dosing calcium and carbonates (the substances largely responsible for increasing alkalinity (”buffering capacity”)) in the same ratio as that found in natural seawater.Ionically-balanced with respect to natural seawater concentrations of calcium and carbonates... View
Aquarium Supplements Brightwell Reef Code B 0 Review(s)  £9.85 Brightwell Aquatics Reef Code B is a balanced carbonate-bearing component of a two-part method for dosing calcium and carbonates (the substances largely responsible for increasing alkalinity (”buffering capacity”)) in the same ratio as that found in natural seawater.Ionically-balanced with respect to natural seawater concentrations of calcium and... Add to cart
Out-of-Stock Home Brightwell Reef Code A and B 0 Review(s)  £17.73 Brightwell Aquatics Reef Code A and B is a two-part method for dosing calcium and carbonates (the substances largely responsible for increasing alkalinity (”buffering capacity”)) in the same ratio as that found in natural seawater.Benefits reef-building organisms such as corals, clams, calcareous macro algae, etc. View