Click to expand Tap to zoom Superfish Active Carbon by Elite Koi Save £-39.99 £39.99 | / 10 litre - £39.99 10 litre Title 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Superfish Active Carbon 10L Top quality filter carbon, phosphate free and guarantees optimal results. Super Activated Carbon filter carbon quickly absorbs dyes and toxic substances from the water without altering the neutral pH.