It sounds like you may have a Magnesium def. You can treat it cheaply and easily with Epsom salt. Heres a link the FAQ section of this site. It has everything you need to know about growing.

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ThePinkJina Reviewed by ThePinkJina on . Are my plants sick? Can you help? Some of the leaves on my plants are showing yellow/rust colored speckles. I've traversed many sites on the web and have not found any answer to this. Is it a lack of nutes, does it have a disease, is it bugs? I'm growing indoors and keep a tight control on things. This is my first attempt and I'm not sure what is "normal" for the plants. Rating: 5