My girlfriends mom recently gave me an old 3 Gallon Cylinder tank. What can I do with it? They had a feeder goldfish in it that lived forever, but I personally think 3 gallons is way too small. I am for sure going to try to aquascape and plant it. I was thinking of just putting a few shrimp in it, but would that still be too small? What else could I do with it??