Yep, doubled them up, its a bit messier but I suppose its worth it.

Yes I know, I'm worried myself, I'm not sure what the problem is, but my main theory is when we repotted them, we trimmed their roots, so that might be the issue. We've given them liquid worm castings so there's no nute deficiency.

I can't lower them anymore if I wanted to, plus I think that's a myth, see the 3 tomato plants growing near the floor of the whole box? Completely healthy and green.

I will be adding 4 more cfl's though.