right now, i have fake plants that are left alone, and one very small plant that is left alone by all but my pleco when he gets really hungry......i'm not sure what kind of plant it is, but it came from a bulb that i planted in the tank a while back. are there any suggestions of plants that might be able to survive in my tank that i can get at petco or petsmart? (there aren't any full-on aquatic stores anywhere near my house)