Started to flower all the plants at the same time. They all went on 12-12 and I have noticed on the top shelf the flowers are a good week if not more in front of the bottom shelf. Can anyone offer an explanation.

1-The only contributing factors I can think of is the inlet fan is positioned at the bottom but the air is temp controlled so shouldn't be shocking them.

2-The cool tube has sucked a bit of dust into the glass housing and it needs a bit of a clean- could this be the reason?

3-I'm using C02 and as we are all aware as it's denser than air it falls, this would lead me to think that maybe the concentration of C02 may be reaching too higher level.

Any suggestions or ideas appreciated as bit stuck for space and would be using the grow room for drying obviously having harvest two weeks apart is going to make things difficult.
StickyFingersAgain Reviewed by StickyFingersAgain on . Puzzled... Can anyone explain why? Started to flower all the plants at the same time. They all went on 12-12 and I have noticed on the top shelf the flowers are a good week if not more in front of the bottom shelf. Can anyone offer an explanation. 1-The only contributing factors I can think of is the inlet fan is positioned at the bottom but the air is temp controlled so shouldn't be shocking them. 2-The cool tube has sucked a bit of dust into the glass housing and it needs a bit of a clean- could this be the reason? Rating: 5