It's been a month since I've had a terrarium - an aquarium with a ping, drosera and nep, in a mix of 70% sphagnum peat moss and 30% gross sand, growing in their pots.
I changed pots after I bought them, I keep most of the previous soil not to harm the roots, and added spagnum + sand.
Some days ago, I found a small silver bug, like a centipede, 1 cm long (1/3 inch). It ended up in the Ping.
This morning, two more centipedes, the same kind. Sacrified in the ping and in the drosera. For the moment, this bugs are live food supply (LFS [img]http://www.**********.com/iB_html/non-cgi/emoticons/biggrin.gif[/img]), but I wonder if they can harm the plants ?
Is this fauna normal in a terrarium ecosystem ? If not, how to get rid of them ?