Comprehensive Guide to Choosing the Best Tropical Fish for Small Aquariums in 2025

Comprehensive Guide to Choosing the Best Tropical Fish for Small Aquariums in 2025 Introduction Setting up a small tropical aquarium (typically 5–20 gallons) is an exciting venture, but choosing the right fish is critical to ensuring a thriving, low-maintenance ecosystem. Small aquariums pose unique challenges due to limited space, water volume, and sensitivity to environmental…