@hillbilly103 you read right and yes they are. But why you ask. The idea was to be able to see when to transplant. But umm , we see how far that went. I do plan to rap some duct tape around them, that is kind of dark plastic so it’s not to bad but yeah it happened.
The plus side is that I’ve seen for my self how much bigger the root system gets in coco and even bigger in rock wool. So I consider it a win for me . I do reckomen you try it for yourself just to watch the roots if only with just one plant one time.