GreenClean Algaecide, 8 lb. Beneficial Bacteria (Koi Ponds & Water Gardens) A bag of Bio Balls

A bag of Bio Balls weighs approximately 8 pounds instead of Lava Rocks 40 lbs

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

Simple cleaning features makes maintenance easy

It also reduces water loss during the backflush and helps prevent beads from clumping together

GreenClean Algaecide, 8 lb. Beneficial Bacteria (Koi Ponds & Water Gardens) A bag of Bio BallsThis 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