Thanks for the advice guys and girls, I'm abit low on cash, so I'll probably have to stick with the MHbulb for the meantime. Anyway, Here's the plants this morning. I fertilised the plant's again with Phosphrate fertiliser and the yellow leaves havn't gone. The new leaves are starting to get yellow tips, so I think the problems getting worse. It can't be light burn because the other plant is at exactly the same height, anyone got any idea's?

Anyway here are the pics, look out for the yellow tips on the brandnew leaves on one of the plants.
joe588 Reviewed by joe588 on . White widow first grow Hi, this is my first attempt at a serious grow. I tried when I was in college on my windowsil but it kinda failed, so a couple of weeks ago I invested in a 250w metal halide lamp. They seem to be growing ok, from what I can tell. However, the plants are starting to show a little yellowing on the leaves. I looked about and diagnosed this my self as a N deficiancy, so a few days ago I added some to the soil. It hasn't made much of a dif. They're not that yellow yet, I would just like to catch Rating: 5