Little Help identifying what's wrong....leaves yellowing....zinc def?

I recently transplanted these babies into 4 gl pots and my leaves this is happening....

Anybody got any idea what this is? zinc def? mg def? too much nutrients?

I have the same problem.... I think its a soil Ph problem. I flushed a few plants with 5.2 ph'd watter and gave some others GH flora grow nute's 1/4 strength 6.5 ph'd and its been 3 days no sign of change on either and its getting bad more yellow is coming and don't know what to do..... so if anyone would help that would be awesome... Teach us wise ones

What soil you useing?

black gold......i don't think it's soil since i always use the same and NEVER had this problem. any ideas anyone....