hmm...first, just a helpful hint i wish i had gotten when i started here, most people will read a question like "any suggestions or input?" and just move on because its so vague... i mean you've got lst vs. hst growers and those who believe stress is evil, those who grow with HID and those go with T5 and then there's the explorers out there who are trying their damnedest with LEDs. So, if you're looking for meaningful advice you'll be better served by asking very specific and detailed questions.
Second, everyone on here is gonna give you some lip about being a newb around here, so be prepared for that; one of the biggest things you're gonna get flamed for here is not giving the details about your grow and your goals for the grow...the easiest way to avoid that is to have all your specifics in a journal page (exploring the forum faq and my rollitup will get you the details on how to do all of this) and then drop a link to your journal in your signature (also editable from your my rollitup page).
As for your plants, there are some people who swear by mg and some who say its trash: on this and pretty much everything with your grow you're gonna want to research your genetics, find out what the plant likes in terms of nutrients, and then decide the best way to get your plants those nutes. I like earth juice but i'm an organic grower who uses self watering containers; if you're using mg sounds like you're more into this as a side hobby (don't worry, you'll get hooked soon enough) / just starting out--again thats not bad, and neither is mg, it just depends on whether your plants like it and you like what your plants produce with it.
Your T5s aren't super strong (how big are those? 10"?) so you may end up primarily using those 42w cfls and just supplementing some actinic bulbs in there to help with your spectrum. <-- this statement comes from doing lots of research and finding out about Photosynthetically Active Radiation and Photosynthetically Usable Radiation (or PAR and PUR). You may not be into approaching growing from a PAR PUR perspective and so actinic bulbs may not be worth it for you to investigate. If you're just trying to get a crop from some cfls there are tons of threads on here that will discuss that. You can check out my grow with cfls and an led (its in my signature!) if you want some ideas.
in any case i'll stop here because it should be apparent that I'm not giving you a ton of specific information; rather, i'm trying to give you some guidance on what i've found to be a good way to approach this hobby.
Read, research, listen to npr's gardening show (yes, reading about any veggie gardening is applicable to your favorite plant, especially tomato gardening), do whatever you can to inform yourself about plants and you will be very successful at this relatively simple and rewarding hobby.
Specific suggestions you're using too much 2700K light, and you're getting very spindly and leggy (long stem, wide internodal spacing) growth; i don't know if i'd send these girls into flower in 2 weeks, but thats a space limit question and if they're 10" they could easily be 30" after you flip to 12/12
best of luck
and, remember, this is all opinion so if you think i'm just full of shit, ignore it, no worries!
be easy
-Dr.J
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