After losing 30 seeds from dampening off in jiffy 7's which i will never go there again i finally have 10 seedlings in 3 gallon grow bags full of pro mix,I have watered lightly once with warm water and superthrive.At what point do i give them quarter strength nutes??? .They seem healthy just small and not really growing like crazy.5 days old after breaking ground.I have all ten seedlings under a 430 watt son agro.Do i give them more time before nutes??? Thanks