Mother Earth Coco Covers are a naturally derived replacement for plastic covers.
These 100% natural coconut coir fiber covers work great for preventing algae from growing on top of your rockwool blocks.
Available in 4 and 6 inch squares for use with Grodan blocks.
Also available is the 8 inch custom cover with rounded corners for use with the Flo-n-Gro Ebb & Flow systems and the Drip-n-Gro system.
Tired of algae growing on top of your media, Mother Earth has you covered.
Sold in Packs of 10 only.