of How to Feed a Betta Fish was reviewed by on June 25, 2017.

Nutrition and Feeding of Fish. 1989. Tom Lovell. Van Nostrand Reinhold, New York. 260 pp.
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The food of 26 common fish species of the Lagos lagoon are given. It is shown that the food of the species covers a wide spectrum and most of the available invertebrates are being utilized as food by the fishes. The intra and interspecific relationship of the food and feeding habits of the various species are discussed.
How often should I feed my fish? What is overfeeding? How will I know if I’ve overfed?
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In the southeastern United States, fish are generally cultured in earthen ponds at relatively high densities. The intensive culture system requires that the fish be fed a nutritionally complete diet that provides nutrients and energy at or above the required levels for optimum growth and feed efficiency. This is mainly because the amount of natural food in the pond is relatively small compared to the total nutrient requirements of the fish, except in early stages of life (fry and small fingerlings). Feed represents the largest variable cost in most fish production. While the need for more economical feeds is clear, it is imperative that fish feeds are formulated to be cost-effective, not just less costly. This can be achieved by carefully selecting and blending various traditional and alternative feedstuffs that are suitable for use in fish feeds. It is important that using less expensive alternative feedstuffs not degrade the nutritional and physical quality of the feed, fish growth, processed yield, and product quality. Overfeeding is one of the most commonly committed mistakes made by first time fish owners.
Photo provided by FlickrSome fish may require certain types of food or feeding schedules.
Photo provided by FlickrLovell, T. 1989. Nutrition and Feeding of Fish. Van Nostrand Reinhold Publishers. New York, USA.
Photo provided by Flickr
Wafer food is comprised of disks which sink to the bottom when dropped into an aquarium. They are available in several different formulations for herbivores and carnivores. Wafers are acceptable food for most fish, but they are best used with bottom-feeding fish.Feeding fish is simple once you know how. Just make sure that the dry food you are using is well suited to the fish species, as described below. Once you have found a food that works well and are feeding the fish the right amount, begin supplementing their diet with insects, vegetables, or other nutritious foods depending on the type of fish.Frozen foods were originally used as a substitute for live foods. Today, however, frozen foods are an entity of their own, with many frozen offerings commonly available in the fish trade. Frozen foods are messier than freeze-dried and dried foods because of the moisture retained in them, but higher quality brands of frozen fish food process the organisms so they are less messy. Frozen foods should be kept in the freezer until they are ready to be used. At feeding time, break off a piece (no need to thaw), drop it into the tank, and watch your fish devour this tasty treat.Many fish, as anglers know, have daily rhythms or feeding cycles. Thus different species will feed during the day or the night, at dusk or at dawn, or maybe both the latter but not at other times. Other species may have their feeding times dictated by the ebb and flow of the tide and those who catch their prey by sitting and waiting will be dependant on the activity rhythms of that prey. Because vegetation is generally less nutritious that flesh herbivores often have to spend more time feeding than carnivores. Also as carnivores grow larger they need to feed less often (this applies to mammals and reptiles as well).Looking at a selection of jaws from different species of fish it becomes obvious that they eat many different things. This is because a fish's jaws reflect its feeding mode; long thin jaws like a Pipefish will be useful for sucking in individual small items, huge gaping wide mouths like the Whale Shark are good at scooping up millions of small creatures at one time, jaws with lots of thin sharp teeth like the Pike are good for catching fish, whilst the projecting flat bony plates of a Parrotfish are good for crushing hard corals. In fact a fishes jaws can tell us not only about what it eats, but how it captures its food as well. Because fish, as a group, are so diverse it should not be surprising that their is a vast amount of variation within them.Fish species that feed off the substrate (lake/sea/river/ocean floor) often have sets of fleshy protrusions called barbels around their mouths which help them feel for the food in the mud. Many herbivorous species scrape layers off vegetation, or vegetation off rocks rather than biting it and species that feed of crabs and molluscs must have strong jaws to allow them to crush their prey. Species like some Sharks, Lungfish and Piranhas that take bites out of larger organisms are quite rare.