Goldfish may be kept in an uheated fresh-water aquarium. They are considered ill-suited to live in a heated tropical fish tank, as they are used to the greater amount of oxygen in unheated tanks.
an aquarium or a fish tank
Tropical fish are normally kept in a heated aquarium. Goldfish (and similar species) are usually kept in a coldwater aquarium, or in a goldfish bowl. Where fish are reared commercially for eating: salmon, trout, etc. they are kept in floating fish hatcheries that are usually found in Scottish sea-lochs.
It's not recommended due to the temperature differences (goldfish is a cold water fish and tropical are, well, tropical), also a goldfish will produce a lot more ammonia which it is slightly more able to resist than most tropical species. But over all it is possible.
Goldfish are meant to live in cold water, not the warm water in a tropical aquarium. This is a huge reason why goldfish and tropicals shouldn't be in the same tank.
Yes (I keep fish too :P)
A guppie is a tropical fish and should be kept in an aquarium with other tropical fish, a goldfish is kept in a bowl or tank in cold water - the 2 cannot be kept together because of the different in the temperature of the water
Rule of thumb is to not mix tropical fish and goldfish.
Bettas livebearers goldfish cichlids saltwaters
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).
plastic plants are not harmful to your goldfish aquarium.
yesYes, they can. Goldfish can eat tropical fish food my Goldfish loves it! Except catfish need those tablet food they CANNOT eat tropical fish food! hope this helps XD
There are so many varieties (species) of fish called 'aquarium sharks' that it is impossible to answer your question with any accuracy/authority. However I would advise you to feed 'Goldfish Food' to goldfish and look for some other tropical fish food for any other 'tropical fish'.