Fast Buds Cherry Cola/Gelato Autos

First time trying out Fast Buds. Got several seed packs from GotM awhile back and decided to give them a try. Originally selected Cherry Cola. Tossed my 3 beans in a shotglass of water to soak overnight then into the Rapid Rooters they go the next day. One sprouts on 2/1 and does well but the other 2 seemed to stall out mid sprout. On the 3rd I decide soak and puck 2 Gelato Autos to fill out my tent after giving up on them. They're sprouting by the 5th. I don't waste any time getting them set up in their buckets. I'll top feed a little bit until roots start showing up below. Solution is VERY diluted. The light is set about 28 inches above the plants @ 250w. Might be a touch close but it's a cold basement so they could use the warmth.