they were from seeds and i cleaned it out and put new water pH'd right, i have an air stone pumping oxygen. nutes are pretty simple. one packet of micro and 1/2 packet of grow. resv. temp is heated at 78, i know thats high but i cant adjust it. most roots are white, but on one plant, the roots a darker color in one spot? lights about 4-5 inches away. they look fine now, but the second fan leaves are curling up from the edges. thanks for your help much appreciated.