This depends on the type of fish
Tropical fish.
Its a coral eating, tropical fish in the subfamily of the wrasse
A tropical fish that is orange and white striped. They tend to live in anemones.
a clown fish. it stiped orange and white!!
None, goldfish are cold water fish, so having a tropical fish as a tank-mate just wouldn't work because tropical fish need to live in warm water.
Possibly a Copperband Butterfly fish?
No i is not. In fact a scientific survey revealed that lionfish were eating tropical fish. When lionfish entered an area al the tropical fish had there survival rate slashed by 80% as they fell prey to these lionfish.
No goldfish would prefer to have a lower temperature than any type of tropical fish, however some goldfish can withstand higher temperature if they are slowly acclimated to it! But in the long run goldfish would be happy with other goldfish and tropical fish with tropical fish... there is a reason you don't see the goldfish with the tropical fish in a good aquatic store.
It depends on what type of tropical fish you are intending to keep; it ranges from 6 (freshwater & discus) to 8.5 (for cichlids).
Yes, a small tropical fish that has black and white stripes. It chases other smaller fish around the aguarium.
A clownfish