Freshwater vs Brackish Water: What’s Best for Molly Fish?
Molly fish (Poecilia sphenops) are one of the most adaptable and beginner-friendly aquarium fish. However, many aquarists wonder whether mollies thrive best in freshwater or brackish water. The answer isn’t one-size-fits-all—it depends on the variety of molly, your tank setup, and long-term goals. In this guide, we’ll explore the differences between freshwater and brackish water,…
