Good day! Freshwater angelfish (Pterophyllum scalare) are not suited to live in a saltwater tank. These fish are specifically adapted to freshwater environments, and introducing them to saltwater conditions can be harmful to their health.
Here’s why:
- Salinity Tolerance: Freshwater angelfish are adapted to low-salinity environments, typically living in water with little to no salt. Saltwater, on the other hand, has a higher concentration of dissolved salts, which would stress a freshwater species and can lead to dehydration or death.
- Physiological Differences: Freshwater fish like the angelfish lack the specialized mechanisms (such as osmoregulation) to deal with saltwater's high salinity. Their bodies would struggle to maintain proper fluid balance.
If you have a 100-gallon saltwater tank, it would be best to stock it with species that are adapted to saltwater conditions, such as clownfish, tangs, or other marine fish. Freshwater angelfish should remain in freshwater or brackish environments, depending on their specific needs.