Tropical fish include
fish found in
tropical environments around the world, including both fresh
water and salt water species. Tropical fish are popular
aquarium fish , due to their often bright coloration.
Tropical fish kept for home aquaria include the following:
- Wild-caught specimens.
- Single-species individuals born in captivity. The latter category includes lines selectively bred for special physical features, such as long fins, or particular colorations, such as albino.
- Hybrids of more than one species.
Recreational SCUBA divers are often enthusiasts of tropical fish as well. Some keep lists of fish species they have observed while diving, especially in tropical marine environments.