I have been gardening for about 4-5 years now but always purchasing plants from the greenhouse. I set out this year to learn to start from seeds. I have a seed starter kit, heat mats and a 3 light spot lamp on a 12 hr timer... I planted Romaine lettuce, cabbage, broccoli, kale and winter squash. I got sprouts but it seems as though they came up too fast. The roots aren't taking hold good and the sprouts were way too tall... I attempted to replant them but I will be surprised if they survive. What am I doing wrong? too much light? too loose/tight soil? the seed trays seem shallow should I purchase deeper ones? ... any advise would be greatly appreciated... Thanks in advance....
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