Ista Glass Surface Skimmers have been cleverly designed to effectively remove any film of dirt, scum, and protein from the aquarium surface. By doing this, it will improve the surface gas exchange, allowing nasty ammonia out, important oxygen in. This will enhance the appearance of the aquarium no end as it leaves the surface of the water crystal clear. Ista Glass Surface Skimmers are very useful on heavily stocked/'busy' aquariums and will look very good when used with Ista Glass Spray Bar and inline Glass Co2 Diffuser sets. Available to fit external filters using 12mm or 16mm hose.
