Hi all From the info which was sent to me (also privately) I think it is Pyrrosia linearifolia), which seems native to Japan. Here is a picture of that one: http://www.chayagate.com/sagamihara2/ZorroVx/birodo0.jpg Many thanks

I could try to grow it outdoors in the summer, but Pyrrosia piloselloides could not be grown outdoors year round where I live, in zone 5. Other ferns in the Pyrrosia genus are more hardy, Pyrrosia lingua, and Pyrrosia hastata are hardy to about zone 7 or 8 or something like that, but Pyrrosia piloselloides comes from south east Asia (Philippines, Malaysia), and is much less hardy. Mike

I was thinking in Microsorum punctatum... Rgds

Finding small/short ferns is actually harder than you'd expect. Most ferns will start off small but once they take off they get simply HUGE in comparison to the tank (especially a small one like a 10gal.). In addition, do be aware that vigorous "weeding" will be a must with pretty much any fern. Ferns can send runners both above the planting media as well as below it with the result that they can pop up anywhere and everywhere and will "muscle out" most other plants. That said, they are lovely and do add a nice touch. Nephrolepsis exaltata 'Fluffy Ruffles' is one of the smaller ferns with a very nice fern look to it. In my 90gal terr, it got to be about 6 to 8 inches tall. It was well behaved at first bit once it got comfortable it underwent an explosion of growth and tried to take over the tank. Was absolutely gorgeous though I wound up removing it for the sake of all the other plants I had in the tank. Pyrrosia piloselloides is a fern that looks nothing like a fern. It has a vine growth habit and the leaves look more like that of a jade (thick, rather round). A very durable fern IME. Like any fern, it will try to conquer your entire tank if you let it. Btw, with "H. arifolia" do you mean Hexastylis arifolia? If so, that is not a fern but rather a type of wild ginger. What are you using for a light source? Ferns and even mosses tend to require more light than folks realise. There are other miniplants that do work well in a well lit terrarium. If you wish you can contact me via email through GW. While I admittedly am not the best about keeping up on my emails, I do tend to check my email more often that I hit this forum. Happy planting!