Recently bought a three spot, about 2.5" right now. How well to these guys fair with inverts? Currently have one tiny RCS, and probably will move her to another tank just for RCS. But I would like an invert cleaning crew for my 20g that currently houses the gourami. Was think something like Amano, Crayfish, or any shrimp that doesn't breed like crazy, (clams?)I also have a handful of MTS to keep my substrate aerated.