Newbie Question: Is this flowering?

This is the 4th week of m Pineapple Express auto strain.

Just wanted to know if this means it's starting to bud/flower - Do i start to change the bulb and schedule now to 12/12?

Thanks for all your help -

Keep it on 18/6 or your yield will suffer

Yes it's flowering. It's an autoflower and you don't change the light cycle with those. Keep it on 18/6 - or some people use 20/4 or 24/0 - and it will do everything for you. Good luck!

autos should stay on 18/6. plant looks great. it is in bloom. count from first pistil sighting, and she should go ~10 weeks from there till harvest.

b.real said:

autos should stay on 18/6. plant looks great. it is in bloom. count from first pistil sighting, and she should go ~10 weeks from there till harvest.

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10 more weeks for flowering? This is a hydro setup - how ill I know when it's done flowering?

yes, 10-12 weeks from first pistil for best potency and highest yield. i really like how well youll running hydro. you could increase the ppms by 25 maybe 50.

youll know when its done, itll stop pushing out rouge white pistils. join my blackout kush journal to see how to harvest properly.

https://www.rollitup.org/grow-journals/671554-jamaica-seeds-blackout-kush.html