stickyicky77
Well-Known Member
The top of the sponges will turn green because the light is shining on your plants and some algae will grow on the top of the sponges. That is why you have to use the labels that cover the top of the pods to keep the algae to a minimum. In the spots that you are not growing in just put the pods back in and cover the tops of the pods with foil tape that can be purchased at Home Depot in the A/C department. Doing this will keep the light out of your rez and will prevent algae in your rez and problems like root rot.