All new growth is yellow in the center...?

I take some tomorrow just when the lights go off...the switches are in difficult places to go and poke with,,I easily fry my timers etc.
so pics without hps...tomorrow fokes ..

Yo, back with New pics,,,hope you like them...

So is that a classic magnesium def or what...and caused by ?

Not really just looks like new growth you could up your feed a little but they look ok

Alright thats good news, nothing is easier than that....Thank you very much. ..the reason why the nutes are maybe STILL a bit lame is that,,,I got tired of spraying the Nitrozyme and Green Mystic Humic as foliar so I put them in the tank, but what they did was upping the EC like 0.4 so I got scared and had to dilute it back to my desired EC value,,,,but in the reality the NPK EC value is 0.4 lower than the meter indicates ...now I just upped them up to 1.8 EC so from that the water is 0.2 and the Nitro and GMH part is 0.4 so the actual EC for basic nutes is just 1.2 EC and this is the highest so far I just upped it to this last night...might have to up some more still since they are in flowering and all.....

Your doing a good job man just see how she reacts to the new feed before you up it more

Maybe it's a light change issue?

Also do you think having airfilter fabric at the bottom of the pots would cause a draining problem....I have used that method in smaller pots without problems...now I am not so sure ...anyway the fabric is the same as the ones covering the carbon scrubbers ,,the white airy ...I think it shouldn't cause water to drain any poorer than without...

Aaaaand it helped ! Plants nice and green ...upping nutes is the way to go...muchas gracias !