I'm surprised just how fast these cacti have grown. Here's 3 pics. First is from Janurary 21. Second is April 17. Third is from today (June 2). For the first few weeks, they were on a window sill, for the next month they were under CFLs, and since then they're in the sunroom. They love it in there, it usually gets to 90F in the day, and 65F at night. You can see , espescially in the 3rd pic cactus on the left that the spaces between the aereolas are much more spaced out than the old ones. Any idea if they'd flower anytime, or are they still immature.