New Grower Deep water culture questions

[doc red eye]

Hi
Will be growing 6 think different seeds under two Black dog bdu450w led lights in a deep water culture system.Questions are 1) When the seedling has germinated in the rock wool and placed in growing medium should they given straight water for a couple of weeks or fertilized right away. 2) What are some of the simple but good fertilizers to use? Also will add a tesler 300w led for flowering (just because i like it.
Any and all tips welcome.

 

[TheLittleBoyWhoPointed]

feeding generally is done when 2nd to 3rd set of serrated leaves grow....the round fat cotyldons are used for the first growth spurt...when using rockwool I believe it should be topwatered until the roots come out through the medium and the bottom of the netpot to the res, which I would keep just at or below the bottom of the netpot...after the roots hit the res and grow a little one can lower the res to about an inch below the netpot...as long as the rockwool is not kept saturated all should be fine...constantly wet rockwool can lead to problems in dwc IMO, so best to get the roots growing into the res and then lower the res a little as soon as possible...

wait for others opinions though because there are as many ways to grow as there are strains...and others may have better advice more suited to your conditions.
what ferts do you have access to?....I can recommend Love Potion nutes as a good one part veg and one part grow nute....made by maplereef products....but canna is another good one I have used in the past...as well as dutch master...I have even used miracle grow blue powder nutes before, though they are not formulated for cannabis...

LB