Oh yeah, lizard cats or twig cats are generally good for planted tanks. Starving ones may chew on plants, but they don't really disturb much. Give them a solid surface to cling to, driftwood or such, and they're happy. They don't move much, but they do spend lots of time out in the open, and they look cool. Plus, you can just reach into the tank and pick them up, you don't even need a net. What other fish can you do that with?