Not been a great start.Hey I'm in UK too! I'm doing a my first Coco grow atm. Your grow sounds cool. Thought of everything. Happy Growing!
First 4 clones died.
I think because I didn't top feed enough roots didn't develop and just didn't grow
So I bought 4 more. Because the idea of top feeding didn't work I raised the water level so it sat in the net pot constantly giving water supply to the roots.
They went bad after a few days but I stuck it out. Eventually 2 of them developed decent enough roots despite yellowing and drooping and virtually no growth at all. So I lowered the water level below the net pot and within a week or 2 they recovered.
I'm 99% certain the water level was my problem. I had my clones started in soil. I have looked into it and roots develop different in soil. So I think it made the plant think it was being overfed or. Drowning because the roots hadn't developed enough but were constantly soaked in water. As soon as roots burst through the bottom and I lowered the water level there was a massive difference. Regained colour and growth.
So in future I will stick with top feeding until roots are developed enough and reaching out the bottom of the net pot and access the water on there own rather than drown them
Now I have slight issues with root rot I think. Slight browning of roots in colour and I noticed a couple of droopy leaves. Not too bad but I think it's still quite early. So that's the next step to hoepfull overcome.
I will get it right eventually lol