Newbie gots some questions

[Mfresh]

Need some help from the pros out there...

1. DWC with airstone. seedlings almost a week old, 3" to 4" tall.
when should i start feeding them? 2 weeks?
is liquid plant food ok to use in drops to rockwool instead of mixed in to
res.?

2. CFL for new growth and veg. or is HPS all the way ok? Right now all 6 are
400W HPS.

3. I'm still a lil confused about ppms also. Need some input about how much of
GH Grow and Bloom to mix and when. Plants are in a 26 gallon res.

 

[kahtn]

yes to both as long as its mixed with some water same base as a drip system... you can use hps for any stage of growth .. use a quarter strength of wuts recamended so like 1.5 ml-grow and bloom...then when there about 10 in or so use 5ml...

 

[smokeh]

2. CFL for new growth and veg. or is HPS all the way ok? Right now all 6 are
400W HPS.

i think u can use hps all the way but i think every1 would recommend u going CFL for veg. its the best.

HPS is best for flowering.

just like u can use CFL for flower, just not the best.

so yer, i think u can use hps all the way, although tbh m8, i would use CFL in veg.... it will save u money on elec bill as well

 

[kahtn]

indeed...i run two 600waters and thats plunty...hes right to cfl's or evean shop lights are perfect for veg...