A couple additional pics I should have included yesterday:
1) Blue Twinkle .... my "mini" shrub

Though this is a mini AV, as has been mentioned on other threads (innumerable times, I imagine), because minis often have trailers in their "blood" they tend to sucker profusely. I actually chopped this one down to 1/2inch from the ground not terribly long ago -- I think it was late November/early December. You can see how "badly" it was set back. I have no idea how many crowns are actually there.

2) This is my other large terr -- a 55 gal

Neither terr is sealed. The biggest cause of fungal issues in terrs is when they are sealed. Humid moving air is a good thing. Humid stagnant air is begging for a fungal attack.

Too bad GW doesn't do "stickies" for posts. Imagine there might be others down the line who would be interested in this. "Stickying" post like this would save a lot of headache -- not to mention hand cramps. .

I do get tired, after a time, battling the "urban legend" that AV's can't be grown in a terr. (I think I've given adequate proof how wrong that idea is.) Much of that misconception's "supporting evidence" is the result of a lack of knowledge on what a terrarium can be and the fact that how one sets it up will depend upon the plants one wishes to use.

Linda, the best starting point is to peruse the Terrarium forum. Start with the FAQ and then start looking through the posts. (Using the Search function may help find those areas most meaningful to you.) The Terr forum tends to move in fits and starts. Typically once folks get the info they need, they drop out of sight, unfortunately.

Leafhead, no, not a Haworthia. A Haw. would never be able to survive the moist conditions I maintain in both of my terrs. They would require a MUCH drier set-up.

Linda & Leafhead, not a 100% sure of that plant's ID. I know it is a bromeliad, and I am quite certain it is a type of Tillandsia (a subFamily within the Family Bromeliaceae). But beyond that I have no idea.

And in case the aforeposted pictures weren't enough, here is a final one -- from 4 or 5 years ago. This was a standard AV I got off the "death row" section at Lowes. Got it because it was dirt cheap. I planted it in my 55 gal and it did well for a couple of years. Far TOO WELL, truth be told. I finally had to rip it out (and that is no exaggeration -- its roots had completely infiltrated the media of almost the entire tank). It had gotten so large -- 12" in diameter -- that it was muscling out all the other plants in the tank. I shipped it down to a friend in Florida where, last I heard, it is still happily residing on her lanai.