Not sure if this is what you are looking for. But, in saltwater fishes the cells in the gills secrete salt inte the sea water, whereas, in Freshwater Fish the cells in the gills actively transport salts from the water into the body.
Goldfish are freshwater, not saltwater.
There are millions of tropical fish in the tropical oceans. But they are all marine fish not freshwater fish. Freshwater tropicals can not live in saltwater.
No. Goldfish are freshwater fish and tropical starfish are saltwater fish.
They are tropical freshwater fish. They can be kept in an indoor heated tropical aquarium.
No. Not in the traditional definition of the tropical tank. A tropical tank is a freshwater aquarium. Regal Tangs are saltwater fish and go in a saltwater tank (marine aquarium).
No, salmon are not tropical fish. They are typically found in cold, freshwater and saltwater environments in the Northern Hemisphere.
Tropical usually refers to Freshwater tropicals; and so the answer is no, because all starfish are saltwater.
The only rays that I know of need tropical conditions (some saltwater, some fresh, but both tropical). So the answer is No.. Since goldfish need cold water, they would not be able to co-habit.
No, not even close! Clownfish are saltwater tropical fish that belong to the Damselfish family. Goldfish are freshwater coldwater fish that belong to the Carp family.
there are tonnes of different species of salmon and yes some do live in salt water and you can fish them but some live in fresh water and you can fish them too.
Yes, most freshwater fish were not made to live in saltwater and they can die in the ocean. This is caused by a great loss of weight, due to the water in the fish being pulled out by the salt, and eventually death. About 2% of freshwater fish change to a saltwater environment sometime in their life, but this change happens gradually and they would most likely die if put suddenly into a saltwater environment.
Marine angelfish are perciform fish of the family Pomacanthidae. They are found on shallow reefs in the tropical Atlantic, Indian, and mostly western Pacific oceans. The family contains seven genera and approximately 86 species. They should not be confused with the freshwater angelfish, tropical cichlids of the Amazon Basin.