If your thinking of getting a gold fish you need to know how to look after them, it's quite simple.
Their are three steps on how to care for your gold fish.
1.THE FIRST THING
You must get your tank ready, put the gravel in, then put the water (don't fill it all the way to the top) and after that put the ornaments in, and any plants that you have ( they must be from the pet shop ) then put your fish ( still in the bag ) in the tank, leave it for half an hour to get it used to the tank. Then cut the bag and put it into the tank the next day feed it
people say that you must have a small pinch but no! you should only feed a pinch when you have up to 20 to 30 fish, four fish will eat one flake every 4 days.
Clean your tank every week, scrub the sides and your ornaments with a sponge, take a quarter of the water out and then refill, TAKE YOUR FISH OUT FIRST!!!!!!!!!! ( clean the ornaments and gravel with a sponge ) TIP: don't put your tank in the sun, it gets covered in algae.