Why if you look at my goldfish you see his bones?

If your goldfishes bones are sticking out and you can see its skeleton, then you should have your backside kicked for starving the poor thing. Goldfish should be kept properly and given due respect as living creatures. There are a few basic priciples that all fish keepers (aquarists) live by no matter what species of fish they keep. These principles (rules) are. "1 inch of fish needs a minimum of 1 gallon of water" "Every aquarium containing living creatures needs a cycled filter to remove toxins" "every aquarium needs to have at least 50% of its water changed weekly". There is plenty of food available for Goldfish at pet shops that is cheap and designed specially for them. Most fish (including Goldfish) get particularly hungry morning and evening so they should be fed at those times. In other Words feed them at least twice daily. A small pinch of food may be enough for one tiny goldfish but if it is eaten quickly, give the fish as much as it will eat in 15 minutes. If there is any food left uneaten after 15 minutes, syphon it out so that it will not rot in the tank and poison the water. With luck your fish will put weight on and start to look good and not half starved.