I have 9 fem blackberry seedlings from the attitude. I'm having problem with them just not growing they are in cocogrow started them off with rapid rooter they are 2.5 weeks old when i transplanted them into coco, roots were all out the bottom and at least 6 inch long , swithched from flouro to MH light,i started monkey juice A/B at 240 ppm ,temps stay at 78-81 degrees watering 2 times a day with ebb n flow and they only have 1 st set of leaves and about 1 1/2 inc tall what should i do or what am i doing wrong