Thanks guys! I like the idea of attaching fake leaves to the bottom. I'll have to see how it looks.
The moon rock cave is pretty cool, but I have plenty of caves at the bottom. The problem is that anything at the bottom gets used by my kuhlis, and I need something higher up that my betta can feel secure in.
The floating cave idea: I had actually considered just getting the floating betta log, but discarded the idea after I read reviews that the paint flakes off. My other concern, and this would apply to the floating craft mesh idea as well (which is a good one, BTW), is that it would get moved around by my HOB filter too much. I'm still working on baffling it properly, but even once I get the current fairly mild, I still wonder how much it would move around the tank. LittleBlueFishlets- if you have current, do you find this to be the case?
@Blue Fish- I already bought the java moss, so fake is a no go. I actually have some of those tumblers- I made a cave for my other tank by sawing the end off, but that one rests on the bottom and is covered with gravel.
@jadaBlue- I think I'm becoming an expert at sanding items for the tank, lol. Before I got real plants, I once spent two hours sanding the edges of silk plant leaves because I discovered that they snagged pantyhose.