plants for a simple terrarium?

[Pk93]

Hey there! Ive had a simple terrarium made from an apothecary jar for about 5-ish months; The only plants that I had/have in it are a U. pubescens, and a U. fulva (sulked during winter and is now officially dead :-( ).. the U. pubescens seems to like it and is now (finally) spreading around a bit. Sooo, my question is what else do you think I could put in? The medium I used in the jar is a mixture of coconut coir (thoroughly washed), pearlite and sand, followed by a layer of aquarium charcoal, followed by a layer of sand. I'll try and take a pic of the terrarium/jar tomorrow to give you all an idea of what Im working with.
Thank you

 

[Pk93]

Heres the pics of the apothecary terrarium and the Utricularia Pubescens in it (just realized a bit of mold is starting to grow again, I find that chamomile tea gets rid of it fairly quickly though)
<a href="http://www.flickr.com/photos/pk93/8613477591/" title="Utricularia pubescense by feverdreamt, on Flickr"><img src="http://farm9.staticflickr.com/8122/8613477591_6c810f0263.jpg" width="456" height="500" alt="Utricularia pubescense"></a>
Utricularia Pubescens

<a href="http://www.flickr.com/photos/pk93/8614584612/" title="apothecary terrarium in process by feverdreamt, on Flickr"><img src="http://farm9.staticflickr.com/8546/8614584612_56f10b1b2f.jpg" width="410" height="500" alt="apothecary terrarium in process"></a>
Apothecary terrarium

 

[Jcal]

I couldn't imagine adding any more. The utrics are going to soon cover the top of the soil. Maybe a cape.

 

[Pk93]

hmm, yeah I'll probably just leave it a Utric. terrarium , thanks for the advice!