boneynerd said:

trichomes are what you go by.. look with a magnifying glass in several areas of the plant.. if they are turning milky white there about ready if you got some amber ones it will be a very sleep stony type bud... use your best judgement.

remember when you harvest, that bud thats so big and fluffy will shrink when it loses all that water weight.  if you want it the best just be sure its plumped as far as it can go.

autoflowers seem to make semi airy bud for me.. but maybe different for you.. wish ya luck.  but a good magnifier, and trichomes are how you tell if its ready along with overall budsize/swell

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I agree with boneynerd( lol cool name)

If that's what the trichomes look like at this moment right now, I personally would wait for them to turn amber, I think the potency is much higher at this color and he taste will be effected as well.., I like auto flowering, but sometimes there growing time gets funky, and can cause smaller yeilds..this has happened to me before. It sucks.. It could be a lot of factors I suppose.

Idk this message is just my opinion.. i think if were you, I'd wait a couple days you'll definitely see the color change, if your anxious to smoke that s$$$, go for it, have fun lol:7)