I got this as a gift. It has an under gravel filter that has a little basket with some clay beads for a plant. I'm looking for ideas of what to plant in there. The clay beads are all submerged in the aquarium water. I had a spider plant in there, but I don't think that was the best. For one, I have a cat who LOVES plants and she chewed it half to death, and also I think it's too wet for it to be happy long term in there. So, I guess I'm looking for a smallish plant that likes roots under water but foliage in the air, and non-toxic to cats. Any suggestions? Thanks!