Plant id?

[_skyla_]

I was wondering if anyone could ID these plants I got out of my outdoor water feature/pond and whether it not they will be Appropriate to use in my 17.5g I'm restarting up for my Betta since he's not behaving lately in my community tank. It's only low light?
http://www.aquariumadvice.com/forums/members/65790-albums11632.html

 

[Sharpchick]

If the leaves on the top plant feel fleshy, I'd say that's bacopa caroliniana. The third one looks like anacharis to me.