Betta tank needs some aquascaping yall

Hi there!

So I've had this tank with my little blue betta for a while, but I never really knew how to aquascape it. What do you guys think I should do with it?

It's got some anacharis, anubias and moss on a rock, some red ludwigia and something that I think is spiralis.

He's quite swimmy - if that's a word. Always darting from here to there, exploring and whatnot. But it's only a 5 gallon, so I wasn't going to put anything else with him.

I've been looking for drift wood, but I did the nylon stockings test and every one I found kept snagging, so I haven't bought any. Yesterday I did notice a little tear in his tail. It might be because of the mossy rock - that's the newest addition - so I might take that out of there. Which is a shame, because I really liked the anubias. :/

I'll look into that. Thank you!