dont get me wrong it would be more of an issue in dwc. You could do 20 grows and be fine but warm temps can attract root rot which is a pain to fix. tricky to use chillers on each tank, would get expenssive for sure. I think the black is for roots growth but then i guess it wouldnt matter what colour it was as long as it dark inside.
Plants look fine so its not really an issue. I have a nft tray same as what you are using at my coco grow. i might bang it in next round as a comparrison grow.
Plants look fine so its not really an issue. I have a nft tray same as what you are using at my coco grow. i might bang it in next round as a comparrison grow.