Aquarium fish feed

Approximately 80% of fishkeeping hobbyists feed their fish exclusively prepared foods that most commonly are produced in flake, pellet or tablet form.

[citation needed] Dry foods are also available as pellets, sticks, flakes, tablets, granules, and wafers, manufactured to float or sink, depending on the species they are designed to feed.

One advantage is that medicated food does not contaminate the aquatic environment and also, unlike bath treatments, does not negatively affect fish, filtration and algae growth in the aquarium.

[citation needed] Perishable food can be preserved by frozen storage, and is often sold in blister packs or resealable packets.

These can contain a variety of ingredients such as bloodworms, Daphnia, or brine shrimp, and are commonly used to feed such fish as Discus which require a high protein diet.

Food for larvae and young fish include infusoria (Protozoa and other microorganisms), newly hatched brine shrimp and microworms.