Jimmy - if you are using coco anything you need to figure out how to keep it wet. Coco dries fast and needs to be moistened regularly. Why do you even have the coco cups? It seems like they defeat the purpose of the bubbler. They are a barrier between the roots and bubbles. I looked at the rainforest 66 on-line and I didn't see coco-cups mentioned anywhere. You should maybe think of ditching the coco cups and just use hydrotron in a net pot. Isn't that the most common way?

PC :smokin: