I want to say that I think Biotabs have potential in Coco..But needs more experimenting. My plants fed by Biotabs are the smallest and most unhealthy plants that I have ever done. However, they started off great and with experimenting I am sure that the results would be better. I have some Sour Crack that is dried and was fed by Biotabs. Nice, dense, frosty, smell/taste is great. But the yield was too low. I would love to be able to run just Biotabs, but unfortunately I will have to run a lot more experiments in Coco. I have been growing for 20 years. I can sacrifice a little decrease yield for less labor, but my Coco nute fed plants are FAR SUPERIOR yielding and are perfectly healthy. I am healthy enough to mix nutes again, so I have started a bunch of Sour Stomper seeds that will have Coco nutes. Not using Biotabs until I can find out how to do better in Coco.