Something new or a later stage deficiency??

too much K, blocks manganese, zinc, iron, and magnesium

Hey grüß dich. Ich würde auf den Anfang von einem kleinen Phosphormangel tippen. Was aber nicht sein muss. Phosphor kann am besten bei einem ph-Wert zwischen 6.5-7.5 aufgenommen werden. Das heißt es besteht vielleicht garkein Mangel an Phosphor sondern er kann nur nicht gut aufgenommen werden Probier vielleicht den ph-wert etwas anzupassen. Beim nächsten Mal gießen auf 6.9 und die Male danach auf 6.5-6.8 Beim grow in Erde liegt der optimale ph-Wert zwischen 6.5-6.8. Viel Spaß und Erfolg bei der Ernte 💚🍀

I'd reference the feed chat and confirm your giving the right amounts. The plants look amazing in the previous weeks so this is probably not the main issue, https://www.terraaquatica.com/wp-content/uploads/2022/01/TriPart.pdf If using liquid nutrients in soil it is advised you get some runoff, hopefully your soil has a good amount of perlite in it to facilitate the runoff needed and not over saturate the medium. I have a feeling this might be a buildup in the medium causing some lockout or a PH flux. You want to get a good amount of runoff about 10-20% of the pots volume. If this has not been happening then you want to start this. it would also be good to check the runoff EC once and a while and well as its PH, with soil based grows I like to aim for 6.4PH as the microbes in the soil can fluctuate things a lot. going down towards 6.0 I have found more issues and less buffer room for error. If the runoff EC is high it means your feeding to much for its current stage of life. EG if your feeding at 1.6EC and its coming out at 1.6EC or higher its to much, it should be using some of that nutrient solution up and lowering by a few points. Best of Luck!

It looks like they are healing brother and getting over the deficiency. Just don't overdo it on the cal mag because that can lead to other problems. What it also looks like is your plants are lacking minerals in general as well as enzymes. A good way to get them into the soil would be basalt or glacial rock dust for minerals and a seed sprout tea for enzymes will give your plants the kick they need. You could have an uptake issue and your plants just can't get to the nutrients you're providing so also beneficial microbes and bacteria can help like lactic acid bacteria or JMS. A good root drench of those 2 will free up your root zone and your plants will thank you.

Hello my friend, Your plants suffer from a nutrient lockout and show signs from nutrient burning. The nutrient salts are building up inside the soil and you want to flush them out to create a lower EC inside the soil and you want to raise the pH a bit to 6.5 My advice is to flush the build up nutrient salts inside the soil away. To do this you give the pot volume in water and let the runoff drain away. So if you got a 10 liter pot you are using 10 liter of water. You can add the tripart nutrients as listed in your diary but without the Bio weed nutrient. Make sure that the solution is pH 6.5 Let the top layer of the soil dry out completely before watering again to prevent overwatering. For the future time try to give water till 10% from the given amount runsoff from the bottom of the pot to prevent salts building up inside the soil again.

Do u use any N and K source? Saw ur previous question and adviced u to use some N source. I think its hungry and if u uses only CalMag, leaves feels lack of other nutri's. Once u got a trouble with feeding, its getting worse if u dont "hit a point" and keep focusing on one, in ur case calmag. I would use full dose of NPK source for vege stage.