GreenClean Algaecide, 8 lb. Beneficial Bacteria (Koi Ponds & Water Gardens) This Black Plug is a

This Black Plug is a replacement piece for the 1/4

Vitamins and many other ingredients to help with digestion and maximum uptake of nutrients

Simple cleaning features makes maintenance easy

12" extension has a flange around bottom that slides right over the top edge of the mini & small vault

formal fountains and waterfalls

GreenClean Algaecide, 8 lb. Beneficial Bacteria (Koi Ponds & Water Gardens) This Black Plug is aThis popular product is designed to treat algae in both small garden ponds and large earth ponds. GreenClean works through oxidation, which provides immediate control of algae and complete biodegradation. There is no residual heavy metal from the product, which makes it ideal with copper sensitive species like Koi and Trout. Completely non hazardous to fish & plants, this product is registered with the EPA and is Organic certified by Organic Materials