The ones I have currently: I can cultivate bristle worms, upside down jellyfish polyps, and vermited snails like a God. My other power is apparently somehow causing GSP to only grow one new polyp for every one it loses, leaving me with a steady GSP population of 5 polyps at any given time lol. Be jealous fools!!!
The power I wish I had, the ability to snap my fingers and completely wipe out all bad pests from my tank (and half the bristle worm and 3/4s of the vermiteds). Curse you Aiptasia!!!!!!
I would be able to stretch my arms and move stuff around in my tank like Plastic Man or Elastigirl. I'd never have to stand on a step stool or ladder. Only my arms would get wet.