your best bet is to transplant them into some good soil in larger containers. This has happened to me in the past and that usually fixes it. Just make sure not to use MG soil this time. They do have an organic version at Home Depot but the chicken guano in it gave me a nasty bronchial infection so I would stay away from that.

It pays to spend the time and money on a god soil mix, making your own is usually the best bet.

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Let me slip out of consciousness and into something a little more comfortable...