Filter-Aid

Makes any outside or power filter work most efficiently by not allowing the finest particles to pass through. Can be used with cartridges, floss, sponges, carbon, and any other filtering material.

Actually polishes your aquarium water with results seen in minutes. Use one drop for every gallon of aquarium water. Should be dropped directly on filtering materials or behind cartridges in dirty water areas of the filter box.

Made in the USA. 3/4 fluid ounce (22 ml) per dropper bottle.