Profile: Cassco is a global supplier of pond treatment products to the manufacturer & wholesale distributor. We offer a variety of products for treating larger ponds & lakes, such as those found in parks, golf courses, subdivisions, business offices, aquaculture and farm ponds. 7-in-1 liquid water conditioner removes chlorine, chloramines & ammonia, detoxifies nitrite, removes heavy metals, adds essential electrolytes and replaces skin slime coat. Our oxygen based rock cleaner quickly and effectively cleans rocks, waterfalls, birdbaths and similar areas.