> I have a 65g aquarium that I want to set up as a > terrarium. I figure that I've got two > options. > > 1) Transplant all my various potted cacti into the terrarium and use it > is a dry terrarium. > > 2) Get new plants that prefer a humid environment, and take advantage of > the closed lid, etc, and enjoy something new! I would suggest using the terrarium for growing whatever you can't grow without a terrarium. I think you can grow cacti just fine there without a terrarium. With an indoor terrarium you would have to provide a very high light levels year-round to get almost any cacti to look good. In your latitude and with your dark winters, this would usually mean sodium vapor lamps with their attendant risks of heat. So, I would also vote for the humid terrarium... your summers are moist enough for a lot of wet plants, but your heated winters indoors aren't good for many humid-growing plants. Leo Martin Phoenix Arizona USA