Fish food is plant or animal material intended for consumption by pet fish kept in aquariums or ponds. Fish foods normally contain macro nutrients, trace elements and vitamins necessary to keep captive fish in good health. Approximately 80% of fishkeeping hobbyists feed their fish exclusively prepared foods that most commonly are produced in flake, pellet or tablet form. Pelleted forms, some of which sink rapidly, are often used for larger fish or bottom feeding species such as loaches or catfish. Some fish foods also contain additives, such as beta carotene or sex hormones, to artificially enhance the color of ornamental fish.

Opinion on best flake foods for aquarium fish...

Veterinarian Bob George sliced open the dead shark and saw the outline of a fish. No surprise there, since sharks digest their food slowly. Then George realized he wasn't looking at the stomach of the blacktip reef shark, but at her uterus. In it was a perfectly formed, 10-inch-long shark pup that was almost ready to be born.

Ever wish you didn't have to get your hands anywhere near those icky-smelling flakes of fish food? Well, here's an answer to your problem.

An aquarium magazine has published an article which shows how cosmetic surgery can be performed on pet fish by amputating their tails with scissors and injecting them with food colouring using a hypodermic needle.