Geof, can you adjust the height of your lights. I tried really hard to keep mine very low but I still have bunches of spindly plants. Could also have been caused by the massive repot when I overwatered.
I have pinched just about all but the very bushiest of my plants to try to get them to 'bush up.' I simply cannot imagine 2000 to 3000 plants, no matter what the size. I have never counted anything but my dahlias. Lilies and begonias take up little space. With my new found vow to save only a few dahlias and order new ones, the nursery next spring should be more manageable. Having more than you need is really wasteful and the electric bill is horrendous.
It is so warm here that I planted out some squash and bean plants, although the beans are under poly for now. More to protect from the sun than anything else.
Off topic: my dear grandsons took my car yesterday ( a 2013 Outback) and detailed the exterior. The oldest, 23, has worked as a detailer and has several of their tools. He buffed out scratches, then put a sealer on it. The 'diaper' on the front of the car is almost invisible now (a clear cover that I had put on by the dealer to keep pits from road rocks down). I told them it looked better than brand new. They worked for hours yesterday then still had one side to do. They are so thoughtful but keep insisting (especially the older one) that I have done a lot for them. But then that is what real family is about. Nick, the oldest, isn't blood related, but he has been more thoughtful and loving than most of the people in my blood related family. Just sharing. sniff-sniff.