He needs some plants. Maybe just one or two until you can get something better. Here's a test you can do. If it snags a pair of panty hose, it will tear his fins. If you don't have that available, squeeze the plant gently. If it hurts you by poking you, it will tear his fins. Good luck. =)
okay, i will definatly do that. i mean my girls are perfectly fine..but the boys i kept in there, idk..its like they snagged their fins..and i dont want that to happen :( but thank you for the advice sweeda
Keep in mind that most silk plants have some plastic parts. I found this out the hard way when my supposedly safe "silk" plants nearly killed the red/pink fish you can see in my siggy. His fins were nearly gone before I realized what was going on, and then his suffered from severe fin rot. Unless it is a real plant, your best bet is to always check it for sharp/jagged bits that might snag your fish's fins.
Of course now the red fish is a tail biter... Apparently he liked having shorter fins!
I would always go for live plants - no harm can come from sharp bits! :) Anacharis, moss balls, java moss, anubias, ambulia, java fern and lacefern are all good starting points. :) Alternatively, if you have a facebook, search Acumen Aquatics. Those silk plants are designed especially with bettas in mind and are brilliant (I have three, plus 3 bits of decorations from them.)