Hi what deficiency could it be?

Hi, the EC was a bit high. I water with 1400 and the run off was 2500. I think an excess of Phosphorus made the issue. I used deionizated water to get it to 1300. I can't do a full flush right now . Would you think there will be a problem. @dutchdoobie if I follow the scheduled ratio the amount EC will be very much high. I asked to a better ratio proportion directly to them and in using that ratio. I think the vermiculite kind retain much of the nutrients and release then slowly so the amount of nutrients can be lower

High deepsheeba, When I just started to grow I liked to use the same GHE nutrients and followed their feeding schedule exactly like how they advice. I have never had a deficiency exept for 1 time and it was because my pH was too high. So I would do a good flush with pH 6 (it will raise slightly to around 6.2 - 6.3). Then give nutrients like you did before and they will reward you with big, fat buds!!! 😋

I was thinking it maybe Magnesium but GH trio is a good well rounded feed in most cases. Sometimes plants need more Cal Mg then it provides. Could always try an application of some magnesium for the plants in one of the watering days. Just a small amount. But before doing that I would do as they suggest below and get the PH under control then monitor the runoff EC to confirm this is not a buildup lockout issue and more of a PH one. Good Luck ***disclaimer, multiple people are answering all questions as there is a contest called GOTM, when a user is selected as the answer they get a point. Please see the contest page for information regarding the details: growdiaries.com/giveaways/GotM-August-2022 Please note, when you reply to anything on the questions part of Growdiaries website, no one will be notified of this. Not even if you use a "@" tag in their name. Best to reach out to them in DM using your inbox, it can be found in the bottom right hand corner of the site. It's the small paper airplane button, it will be highlighted green if you have new messages***

I would agree with Growinggrannie that you have a ph problem locking out some nutrients, possibly copper, magnesium, maybe potassium. Lower your ph between 6 and 6.2. One other thing that popped into my mind was possible light stress.

It's one of the micronutrients - sulphur? zinc? manganese? But is most likely caused by your pH not allowing the plant to absorb these even though they're in your nutes... I would drop the pH to 6.0-6.2 and see how she does... Even a few decimal points of pH value can have a big impact on the health of your grow. If you don't have a good pH pen, I'd suggest investing in one as that is an important tool for any grower to have! Good luck