3 pack of filter media supplied with mesh bags including premium activated carbon pellets, Phosphate remover (GFO) & Biological rocks.
Place bags in area of high flow, ideally in a dedicated reactor, sump or filter compartment.
INCLUDES: Bio Rocks 180g in mesh bag / Activated Carbon Pellets 150g in mesh bag / GFO phosphate remover 150ml (approx 100g - premium German product) in fine bag.
Amount supplied is sufficient for upto approx 200L aquarium depending on many factors, Amount used can be reduced accordingly for smaller aquaria. The bio rocks can be left indefinately to provide home for beneficial bacteria. The Amount of bio rocks supplied is designed to supplement existing biological media (for example mature live rock) to be used in conjunction with skimmer and regular water changes for a healthy tank!