For a 2 gallon I'd say go for a ghost shrimp, much lighter bioload. I have to warn you, I started out with several ghosts, and only the way who were about as bit as Aden survived-- simply because he couldn't bite them in half, I think. So if you get a shrimp, try to get one that's big enough for it to be hard for you fish to fit it into it's mouth.
"Everyone and everything has a time to die."
Many fish live in our hearts instead of our tanks
Tanks: Maguro, Fluval Spec III Planted | Sashimi, Fluval Spec III Planted