Yellow veins leaves of seedlings

My seedlings are 1 1/2 weeks old and are beginning to get yellow veins. I have 1 master kush and 1 hurcules. Both were transplanted from rockwool to fox farm ocean forest. I haven't watered in 2 days because the dirt is still moist. Im thinking about using 1/4 strength nutes tonight to see if it helps. If you have any suggestions please help.
 

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The temp fluctuates between 73F to 83F. I'm using a florescent 2 foot lamp for them until I'm done nursing them then ill put them under a 600 watt MH.
 
I'm having the same problem, help!!! cfl's are a foot away from the seedlings and its only 1 seedlings thats yellowing, i overwatered 2 days ago and got a lot of the water out of the rockwool, but the yellowing has only gotten worse!
 
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