Hi everyone, I'm new to hydroponics. I have a NFT system. As the topic mentioned, my vegetable can germinate from seed pretty well but eventually when it grows up to around 1.5 inch height, the growth of the seedling stunted.
As you can see on the picture, the new leaves that grows out from the seedling are yellowish/whitish. If lack of nitrogen, old leaves should yellowish first right? If so, what else could cause this problem? The seedling growth stunted at this height and eventually die in few days later. =( help/advice needed, anyone?