These ones really ended up huge. Hopefully they've stopped stretching now cos they're right on the limit of light burn I reckon.
They don't seem to be having the purple hues coming out but I did notice my light timer had failed so for a while when the extractor was off at night the light stayed on and it got up to 36 to 37c!
Maybe now it's back to normal they'll start to turn! Low temps at night = more chance of purple from what I've heard.