Ahhh good, I understand
much better now. Thank you! Sorry about the "better" and "more proper" thing - honestly I know nothing at ALL about live plants except the stuff I've read here in the last few days, after I decided to do live plants in at least one of my betta's tanks because he's forever ripping his fins even on silk plants (which insist on using plastic for "shoots" and "buds" etc

). I'm awfully glad to read that I can do this without co2 etc and, pardon the stupid pun, get my feet wet before jumping in completely. My guess is I'm going to love it and will be going the co2 way some months from now, but thank you for clearing it up and letting me know I don't have to.
Depending on your lighting, you should be able to keep cryptocorynes, java fern, java moss, most mosses, and anubias in your betta tank without much effort.
Okay, the small tanks, which are 5 1/2 gallons, have regular ol' fluorescent bulbs that are, I think, 14W. That should be okay for those plants mentioned, yes? How about Wisteria - that okay with that light? Love that plant.
The 55 gallon has only the one fluorescent bulb the light strip came with and is probably totally unsuitable to anything - it's only 32W and probably won't handle anything more. And yes, it's just one bulb. Any suggestions?
BTW.. I keep reading about "root tabs" - what is that?
And, how deep should the sand be optimally?