Tiny marijuana seedling, leaves turning yellow

A question from a fellow grower:

Hi this is my plant, the tips of it are getting yellow. What should I do? I don’t know if I need to buy some plant food or what. If I do have to buy some, what kind should I get, that’s cheap and easy to get. Please help. Thank you

It might be the soil is too rich and burning the seedlings. Seedlings should be started in seedling mix or a very mild soil with very little nutrients. The seedlings should not need extra nutrients until they’ve grown quite a bit more. The embryonic leaves or cotyledon can kind of be thought of the yolk in an egg, it will provide much of the nutrients a little seedling needs to get started and grow a few true leaves before it would need to be fed extra nutrients.