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It can also be extremely useful when the fish keeper plan to stock a tank full of territorial aggressive fish, such as African cichlids, where the later added fish can be at a disadvantage. [ 6 ] However, care in adding ammonia for fishless cycling must be used, too high of an ammonium concentration can kill nitrifiers.
All RAS relies on biofiltration to convert ammonia (NH 4 + and NH 3) excreted by the fish into nitrate. [4] Ammonia is a waste product of fish metabolism and high concentrations (>.02 mg/L) are toxic to most finfish. [5] Nitrifying bacteria are chemoautotrophs that convert ammonia into nitrite (NO 2 −) then nitrate (NO 3 −).
These bacterial colonies take several weeks to form, during which time the aquarium is vulnerable to a condition commonly known as "new tank syndrome" if stocked with fish too quickly. Some systems incorporate bacteria capable of converting nitrates into nitrogen gas. [6]
The source of ammonia in fish tanks is fish's excretion. [1] Fish excrete ammonia as a nitrogenous waste product. A build-up of ammonia in the fish tank leads to ammonia poisoning. Species of ammonia-oxidizing bacteria (AOB) can break down the ammonia and convert it to other, less toxic, nitrogen products.
The goal of quarantine is to prevent problems in the main tank due to sickness. A quarantine tank should be used before to introduce any newly acquired animals in the main tank and to treat fish that are already sick. By doing this, the aquarist can avoid the spread of the disease and make it easier to treat the fish. [1]
An aquarium near a window is likely to be overgrown with algae. A material known as a "phosphate sponge" is available at aquarium shops to leach the phosphate out of the aquarium and reduce the growth of algae. Also, plants such as java moss (not java fern) compete with algae for another necessary plant nutrient, nitrate, and reduce algae growth.
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. Often fed on beef heart fish food within the aquaculture industry, the discus fish are not the only fish which can benefit from a high quality prepared frozen mixture such ...
Fish farming or pisciculture involves commercial breeding of fish, most often for food, in fish tanks or artificial enclosures such as fish ponds. It is a particular type of aquaculture , which is the controlled cultivation and harvesting of aquatic animals such as fish, crustaceans , molluscs and so on, in natural or pseudo-natural environments.
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