I really like this grow a lot.

Nice set up!
Do you have good drainage holes in the bottom?

Why did you remove that bottom shelf that the buckets were sitting on?.... that was a perfect idea to keep those temps down.

Looks like plants 1,2and 4
Are super healthy but the 3rd one might be struggling.... which one do you think is male???

Also I was going t reccomend that you switch to 18/6 and chop the male.

Nice gro bro