first grow

Hi everyone, I'm new to this whole forum world, I really hope it helps me out. I have a 4x4x10 closest that I currently have 10 babies in. There under t5 cfls.. planted in sunshine mix5 and wormcastings, the water I use is tap water and it comes out at 8.0 I phdown it to 5.9..I have a 400watt mh for veg with a 400 watt lumatek ballast. I'm going to be using a silver star aircooled reflector hood with a 4" can fan and filter. For nutes, I'm using general hydroponics three part flora series with diamond nector..I'm just wondering what else I should add for supplements during veg. And I also have light green patches forming on my leafs, and yellow tips there only 17 days old, do I need to start giving them nutes?
 
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