Thanks for update there WH..

Gotta say I am worried about the RH (although its at a "pleasant" 55% right now).. but like i said there's nothing i can really do about it, except invest another £200 for a decent dehumidifier - which will be at the top of my shopping list come for the next grow after Xmas.

As far as that weird bud goes - well i've been giving it a lot of thought and I really think its heat damage - this one plant has ALWAYS been succeptable to it, from about 3 weeks in from seed. As soon as i got it under the MH's i saw leaf burn after 2 days. So i'm hoping its just that. I'm thinking this because all the growth lower down is fine.

I've given all em a good feed n water tonight, and trimmed off some yellow leaves. Some more pics here.

Thanks again WH for your thoughts (and to everyone else too!) - VERY much appreciated!:thumbsup:

Will post more pics, around day 42.

Take care y'all!

MJD