browning down middle of leaf vein

any suggestions? I got nutrients to fix my cal, mag, boron, iron, nitrogen deficiencies that were in my plants but the browning down the center is quite new

Awww aren't you a cute couple! You may have piled on the micronutrients a little too heavily. Good organic fertilizers, rather than supplements like calmag and whatnot, naturally provide the right amounts of most micronutrients in relation to their macro counterparts.

thats why OMRI rules. But I am using vitagrow nutrients right now and I think I added a bit too much phos[horus to the plants since i thought it would be a GREAT idea to add some bloom with a 0-51-34 ratio to the water with abundance of nutes already in it. I am flushing the plants right now and I see the plants are quickly coming out of droop mode. ooo we arent a couple LMAO, he is my co grower