hi guys, just wondered what to do for the best with these plants..
10 lowryder 2 unfeminised seeds
5 feminised lowlife lowryder/white rhino seeds..

started off great, seeds cracked and sprouted fine.. put them in the small cubes.. .. then they went into the bigger cubes as roots shot through the rockwool in days.. 2 days on and the root was through the big cube i put them under my 600hps about a meter from the light using my nft tank.. GH flora nutes btw.. cubes soaked in 0.6-0.8 strength on the ec ... with a ph of 5.8.. btw... this is the first time with GH nutes and rockwool.. before this ive used ionic, vitalink and a few others, also.. i used to mix perlite with soil,ive never used rockwool before..
so heres my problem... the 10 lowryders are lush and green and look almost healthy but the five feminised lowryder/white rhino which sprouted at the same time look real sick to me, yellowing BIG time.. and i dont know why
here`s my pics of them..


3-4 days after sproutin, planted them they were all stood up and looking happy



root poppin through the botton

these are the only pics that turned out the rest were blurry


sorry about the quality of thes pics.. hopefully, you can see what i mean ..

here is the lowryders which look better to me..



and three out of 5 of the fem X white rhino look like this


the 2 on the right are the white rhino X and the 2 on the left are lowryders.. in the same tank btw..

any help whatsoever will be apreciated.. thanks for your time.. miff

bumped so you see owderbs edit and request

thank you