Nute deficiency? Use only ph'd water

Read and can't find my exact problem. Here are the details.
5 short ryders under 5 cfls about 3-4 inches away from each so its not heat stress.
growing medium is jiffy pot organic soil. Each plant in a 3 gallon grow bag and water ONLY with ph'd water at 6.5-6.7. Afraid I answered my own question there with the lack of nutes but I burned my last garden so badly Im afraid of nutes now. Got MG flowering, any suggestions on using it? Thanks ahead of time yall, Rep anyone who helps of course

See if you can find some jack's classic nutrients or dyna-gro ,your not ready for flowering nutes yet.
use either one at 1/4 strength.

its a lack of nitrogen.. flowering nutes have greatly reduced nitrogen bc flowering plants dont need much at all. in veg, its mainly what you need. dyna-gro grow combines with mag-pro and pro-tekt are about all you need. when its time for flowering, then just replace the grow with bloom. just go to dyna-gro.com and use their feeding schedule but cut their nutrient req's down to 1/4-1/3... nutrient burn is easy to avoid in a a multi part system when diluted down.

you could always get some of the Dr. Earths fertilizers and top dress your soil so you have a longer released fertilizer instead of having to feed every other watering or once a week.

Thanks guys! I should have specified that the girls are autoflower. Ill try giving them some nutes since Ive only gave them one watering with nutes in the month that they're been growing.