Not sure what brand of tent it is, got it all in a job lot,

Pots are 3 gallon ones I think, have recently (3 weeks ago) upgraded them as think they were become rootbound, never really flushed the plants, check the PH from time to time but only with some electronic prong thing you put in the soil, but said it was close enough to 7 all the time, what is the best way to test the PH?

We did raise the lights a couple of inches when we saw the leaves turning up etc, what sort of hight should a 400w be from the tops? they leaves are still remaining folder up though, should they relax & go flat again?

dont think we have ever given it too much feed (all the others got the same amount and they seem fine) it is just the 1 plant that has these extreme yellow patches, the others are all green, but on some of them the leaves are folding upwards

we are at week 7 of flowering now so you are correct that this will be for my knowledge the next time round where we will use a proper course of nutrients, and not just randomly giving them some like this time