This product can be found in: Clearance: 50% OFF | Clearance: All | Fish Tank Maintenance: All | Marine Aquarium Supplies   UK Standard Delivery FREE on orders over £39*   KENT Marine Purple Tech 2 Litre 54811 0 reviews | Login to review ON SALE: Order Today to Save 50% off RRP RRP: £49.01 NOW: £24.50 KENT Marine Purple Tech (2l) provides specific concentrations of Calcium, Magnesium, Strontium, Trace Minerals and Carbonates that are required by Coralline algae and stony corals. It also stimulates the growth of purple Coralline and green Calcareous macro-algae such as Halimeda. Please note the image shows the 236ml size, the actual size of the bottle is much larger. Discontinued Unfortunately, this item has been discontinued.