You are going to need more light. On my first grow I used 8 4 ft flour's a gave the plants lots of love (not much else). Yield was about 20grams of good bud and about a Z of ok stuff. If you want bud you need light.
Go with the 400 instead of the 150, if you run the 150 for awhile you will wish you got the 400. The 150 HPS is not really good for young plants, they do much better under t5's at that wattage.
Your plants looks healthy, skinny but healthy, you can let them go a bunch more weeks and still get a light yield or concentrate on those clones. But that's just me.
What strain is it? Some haze plants take 12 or so weeks of flowering to really swell. Haze plants will strech no matter how close the lights are. Node spacing is totally different from strain to strain.
Looks like phosphorous, mag or calcium def. Overall they look good and the bottom leaves feed the clones until the roots are established and show defs alot of the time.
If you have a nursey near by try EB Stone Organics, it's way cheaper than FFOF but not as hot. It is organic and if you do try it, add more perlite than you think you should.
New growth looks good, clones can use up the nutes in the old growth before they start taking from roots. Throw some perlite in your soil when you transplant, looks a little heavy.
HTGsupply is great and I don't really think anyone is tracking "dirt" sales, if they are they have way to much time in thier hands. Check your local nusery for fox farms nutes. By the way FF soil is pretty heavy when it comes to shipping.
raise the light if you don't have smaller one. Mist them and if using rockwool next time lower the ph to 5.5. Give them a little time, and keep the dome on, who knows things might improve.
you might be able to duplicate the spectrum emitted by the sun but I don't see how you are going to duplicate the energy. Your wavelength still needs some juice to make a difference. Great thread, who says MJ kills your brain.