Ciano Stop Algae Filter Cartridge Large (CFBIO 150 & 250)

Ciano Stop Algae is a filter cartridge suitable for use with CFBIO150 and CFBIO250 internal aquarium filters. This chemical filter cartridge combats and elimates aquarium algae, and should be used as an occasional treatment. Also effective for removing nitrates and phosphates. NB. Water Algae must be removed if medication is added to your aquarium. For best results, follow guidance on packaging. 1 pc