Dont know what the Problem is.

I'm about in week 3 and the plant is starting to Grow the Third set of Leaves, but the Second Set are starting to turn Yellow,

I have it in a Home made Hydro System with a Drip system,, i have Water which have Tomato feed in it, i have changed the Water and now have Baby Bio in it, i dont think its Heat Burn as im using CFL bulbs.

nutes? Ph? something wrong

Guessing nute burn..its tiny.

When you Say its nut Burn.. "Its Tiny" did i start the Nuts at a young At for a plant that i should just stick to Water ? im kinda new to Growing, and im looking at my Second time at Growing. Still getting used to the whole Hydro Systems and Soil.

What can i do to stop the Yellow from getting bigger ?