I agree with @Tony s More than you think.
Practically any plant that ACO sells on their site. I've had Frogbit and Duckweed as my floaters, and still had Dwarf Hairgrass, Crypts, Pogostemus Stellatus Octopus, Anubias, Vallasenaria, etc all grow. The list goes on.
The key, is having a light, where you can dim or intensify the brightness.
With that said, I would HIGHLY recommend the ACO light. It's the best light on the market, and practically indestructible. Go watch Cory's video from yesterday - you'll laugh and be impressed by it all at the same time.