A few things:
The screengrab you posted earlier in the thread shows a name. May not be yours but best to crop it off!
Coco grow - the stuff from Poundland? You are only on half strength if using the poundland nutes, just for everyone else's information. I used that range on my last plant, and also on a current shortstuff sharkbite auto that isn't behaving like an auto (which after 8.5 weeks i am now trying at 12/12 to get to start to flower). Both plants were healthy with no deficiencies at full strength nutes. I would use them again.
"Readings are showing nearly dry". Don't rely on moisture meters. Use your finger or better still learn to lift your pot to tell if wet or dry.
Finally, as mentioned above, water until runoff then wait 3-4 days until dry before watering again. I was using about 1-2 litre per plant as a guide, 100-200ml isn't anywhere near enough to water properly in a reasonably sized pot, which if you have flipped you should be in.
