Yellow leaves

Really appreciate all the replies 🙏 I held off feeding the plant yesterday to see if it was an over feeding issue. Adding a few more pics, have a look.

Hi! To me this looks like the beginning of zinc or potassium deficiency. You might have enough of both in the soil but wrong pH or too much of something else might make it unavailable. 👌

This is a case of overfeeding... If you were using chemicals there would be burnt tips.. This is not a deficiency of any kind.

I was puzzled until I saw the Bio-Bizz... ahh soo... Yeah its a hole in your nuets though not entirely sure at this point which, problem is that stuff (bio-bizz line) can burn your plant in conjunction with some cal-mag solutions. Seriously keep a close eye on that plant for changes as you are already using Cal-Mag though I am not familiar with the type.

Hi there, this looks like a magnesium deficiency.. do you add any calmag to your nutrients? If not, then i would add a bit, but be careful, as the calcium in calmag makes the EC go quite high, so if you already have hard water (with a high starting EC) you don't want to "overfeed" the plant, as it can then possibly go into a nutrient lockout. If you have an EC meter that's really handy in such situations for being able to measure exactly what you give them. In case you use RO water, then you definitely need to add calmag (as that's fully been filtered out). happy growing!

Hi how much is your ec worth? Feel free to add some Cal / Mag. how i make my home water: Best if you have osmosis water and mix the stale water for 24 hours (after 24 hours the chlorine has evaporated somewhat) to an Ec value of 0.2. Then add Cal / Mag until the Ec is 0.4