When it comes to setting up an aquarium, one of the most critical aspects to consider is the number of fish you can keep in a given space. For novice aquarists, a 10-gallon tank often serves as a perfect starting point, offering enough room for a variety of fish species while remaining manageable for maintenance. Among the popular choices for small tank setups, tetras have gained a significant following due to their vibrant colors, active behavior, and peaceful nature. However, determining the right number of tetras to house in a 10-gallon tank requires careful consideration of several factors, including the specific species of tetras, their social behavior, the tank’s filtration…