Growcubes work great in coco coir

If you need a little more aeration in the coco coir that you are using, consider mixing in a little bit of Growcubes. Soak the cubes first in water, drain, then just mix in 1/3 wet cubes to 2/3 coco mix. The pepper plants below show the difference that can be achieved by adding Growcubes to coco.