Can anyone answer this???

ok so i didnt know where to post this because i have hydro and soil, but my concerns are mainly about my hydro setup i started the 4 indica plants 3 weeks ago the clone was added 3 days ago and is the largest of all of them. the clone is purple cotton and the seedlings are 21 which is a hybrid of blueberry x sweet tooth. growroom is a growlab gl120 4x4x6, my lighting is a 400w MH in a suntube, two 60w cfl and the blue 12in. t5. i have a 170 cfm fan cooling the MH and attached to a gremlin activated carbon filter. temp is about 80F humidity ranges from 40-65. my worry is the hydroponically grown ones i started them all in rapid rooter plugs but the only one to really grow is the soil based one. i feed them general hydroponics nutes in the ratios of 1/4 tsp floragrow, and 1/4 tsp flora micro per 2 gallons of water. it only has a 2 gal reservoir. ph is balanced to around 5.5-6.0 the npk ratios are 2-1-6 and 5-0-1 respectively can someone please tell me what i should do if anything?
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Ph needs to come up,I would shut off any flow and manually pour around the plants to encourage root growth.Ya only have to do it three times a day for a few days.I didnt see any distance of light from plant but I use flouros @ this stage in growth.If ya can put the flouros right on top of them.If you have to use the MH bring it close enough to feel the warmth on the plants ,not too close.Peace