My tank has three gallons of water, is filtered and cycled, with one betta and two snails, and I have...5 kinds of plants in it? Yeah. I have an anubias, a java fern, a moss ball, java moss, and watersprite and they do fine.
The java moss i keep free floating because I like to use it to break up the current from my filter, and the watersprite I let float on the top of the water because it'll grow roots all over that look pretty and dangly like that...the java fern and anubias I just keep very lightly anchored into the gravel by a few roots, keeping the rhizomes exposed.
The only think I had a problem with was anacahris, it always melts on me. But I think that's a temperature issue, not to do with bacteria.
I'd say go for it.