Leaf discoloration

What kind of nutrient deficiency would cause this kind of patchy discoloration?

What nutes and how much,often are you using?Looks more like to much of something..

hows the ph once you add the nutes?

i believe ph is somewhere between 6 and 7... which i know is high for a hydro setup. i only have a cheap aquarium ph test kit and it's not very accurate... it's difficult for me to make adjustments with any kind of confidence. i have a digital meter in the mail so that will help matters... i'm just crossing my fingers until then.

i'm using Optimum grow nutes at about 50% strength

Until you get your ph until control don't worry about anything else.

You are far enough off that it can and probably is causing the problems you see.

Adjust the ph and then we talk buisness

Try some seaweed/kelp extract.. looks like a nitrogen deffiecency from here.. but it can be a number of things added up.

Im having issues with a plant that inherited. it began in soil till about a month and half ago, i have a hydro system and didnt want soil in the room. So i transferred them into their own system, and began a micro nutrient cycle. but 3 days after transfer one has discolored leafs with dark spots on them. i dont know what the issue is. my ph level is between 5.5 and 6 always. pls help!