5 shrimp should be perfect for a 3 gallon, just make sure there is some algae growing before you put them in, and you could make them happier by getting some live plantsI'm still cycling it right now, but I'm extremely worried that it's going to be too small. The absolute last thing I want to do is abuse some poor little shrimps. And I really hope I don't get hate for this, I have anixety and just have been freaking out pretty badly for like 3 hours. This is my first aquarium ever and my dad bought the tank for me. Any and all advice is appreciated, thank you!