I am new to the hobby, and have set up my first tank - a nano tank (6 gallons) for a betta fish. When I bought my betta I also decided to get a plant which was in one of the tanks in the fish shop. I made sure to rinse it off (I'd had issues with snail infestations when I was cycling the tank), but when I put it in my tank an amano shrimp darted out! No idea how he hung on in there because I rinsed it pretty thoroughly. The shrimp, Trevor, has been living in harmony with my betta, Colin, for about 2 weeks, and the water has been great. But I feel bad because I know amano shrimps are supposed to live in small groups and he's probably lonely. But I won't be able to get more because my tank is only big enough for my betta, and I'm not in the position to get a bigger tank at the moment. What do I do!