@KaitieG, I was just describing my small plant + snail aquariums as wet houseplants, because you can enjoy them like houseplants, with minimal work, and not worrying about keeping up with another fish tank. It is also a fun way to try a Walstad-inspired setup, or as a prequel to keeping shrimp. They actually help me to remember to water my regular houseplants! My smallest is 1.25 gallons.