For short periods it is fine. For longer periods sickness will occur due to a lack of needed nutrients for tropical fish that is not found in goldfish food. This is from personal observances.
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.
No. Goldfish are freshwater fish and tropical starfish are saltwater fish.
no there not they are tropical fish
Goldfish are freshwater, not saltwater.
There is no pink goldfish. However, there are pink tropical fish.
Mosquito fish are not Goldfish. They are tropical livebearers. They may eat the goldfish food but it is not the right food for them and so will not be good for them.
no
No, they can not. Fantails are goldfish and goldfish like temperature from 63-750 . And no goldfish can not be with any tropical fish. It can only be with other goldfish they are likely to nip a little to pick on who's weak but it is not a problem.
Rule of thumb is to not mix tropical fish and goldfish.
Goldfish are not a tropical fish. In addition, they are egg bearing rather than live birth.
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.
No, goldfish are best with goldfish with the exception of weather (dojo) loaches, bristlenose plecos, and apple/mystery snails.Although goldfish can survive in warmer water temperatures, they are a "cold water" fish and not a tropical fish.