Everything looks so nice and healthy. Great job.
I grew my Strawberry Nuggets in the 2 liter fun grow here and the fans on her got as big as 9” x 9”. They were gigantic! After a few weeks, I cut off the bottom couple just to keep them up and away from the media and so I could actually water my gal. She was an amazing girl, too. She was super slow growing, but she grew an almost table top like canopy up until the last three or four weeks. Lots of leaf tucking to get light down to the lower buds.
It looks like your Double Grapes are starting to take off on ya. Hold on for a wild ride, brother.