| Alexandria Aquarium | |
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| 31°12′46″N29°53′06″E / 31.2128°N 29.8851°E | |
| Date opened | 1930 |
| Location | Alexandria, Egypt |
Alexandria Aquarium is a small aquarium in Alexandria, Egypt. It was built in 1930 and is near Qaitbay fort on Alexandria's Eastern Harbour. The aquarium exhibits many species from the Mediterranean and Red Sea around Egypt, as well as some freshwater species from the Nile and the Amazon. Animals on display range from fish to crustaceans and turtles (both marine and freshwater). The Aquarium is also home to the Marine Research Institute.
A marine aquarium is an aquarium that keeps marine plants and animals in a contained environment. Marine aquaria are further subdivided by hobbyists into fish only (FO), fish only with live rock (FOWLR), and reef aquaria. Fish only tanks often showcase large or aggressive marine fish species and generally rely on mechanical and chemical filtration. FOWLR and reef tanks use live rock, a material composed of coral skeletons harboring beneficial nitrogen waste metabolizing bacteria, as a means of more natural biological filtration.
The Asiatic glassfishes are a family, the Ambassidae, of freshwater and marine fishes that were formerly classified in the order Perciformes, but most authorities consider this order to be paraphyletic and that the Ambassidae are of uncertain affinities, incertae sedis, but within the subseries Ovalentaria. The species in the family are native to Asia, Oceania, the Indian Ocean, and the western Pacific Ocean. The family includes eight genera and about 51 species.
Tropical fish are generally those fish found in aquatic tropical environments around the world. Fishkeepers often keep tropical fish in freshwater and saltwater aquariums. The term "tropical fish" is not a taxonomic group, but rather is a general term for fish found in such environments, particularly those kept in aquariums.
Fishkeeping is a popular hobby, practiced by aquarists, concerned with keeping fish in a home aquarium or garden pond. There is also a piscicultural fishkeeping industry, serving as a branch of agriculture.
The name spiny eel is used to describe members of two different families of fish: the freshwater Mastacembelidae of Asia and Africa, and the marine Notacanthidae. Both are so-named because of their eel-like shape and sturdy fin spines. These two families are not related: the Notacanthiformes belong to the Superorder Elopomorpha, whose members are characterized by having leptocephalus larvae. The freshwater Mastacembelids do not share this characteristic and are popular specimens in the aquarium trade.
The Ariidae or ariid catfish are a family of catfish that mainly live in marine waters with many freshwater and brackish water species. They are found worldwide in tropical to warm temperate zones. The family includes about 143 species.
The Two Oceans Aquarium is an aquarium located at the Victoria & Alfred Waterfront in Cape Town, Western Cape, South Africa. The aquarium was opened on the 13 November 1995 and comprises several exhibition galleries with large viewing windows: The aquarium is named for its location, where the Indian and Atlantic Ocean meet.
Julian Sprung is an American writer on marine aquarium fishkeeping. He is an alumnus of the University of Florida where he studied zoology, graduating in 1988.
A brackish-water aquarium is an aquarium where the water is brackish (semi-salty). The range of "saltiness" varies greatly, from near freshwater to near marine and is often referred to as specific gravity (SG) or salinity. Brackish water aquaria is a popular specialization within the fishkeeping hobby. Many species of fish traded as freshwater species are actually true brackish species, for example mollies, Florida flagfish, and some cichlids such as chromides and black-chin tilapia. There are also several popular species traded purely as brackish water fish, including monos, scats, archerfish, and various species of pufferfish, goby, flatfish, and gar. Generally, aquarists need to maintain a specific gravity of around 1.005 to 1.010 depending on the species being kept, but practically all brackish water fish tolerate variations in salinity well, and some aquarists maintain that regularly fluctuating the salinity in the aquarium actually keeps the fish healthy and free of parasites.
Taraporewala Aquarium or Taraporevala Aquarium is India's oldest aquarium and one of Mumbai's main attractions. It hosts marine and freshwater fish. The aquarium is located on Marine Drive.
A freshwater aquarium is a receptacle that holds one or more freshwater aquatic organisms for decorative, pet-keeping, or research purposes. Modern aquariums are most often made from transparent glass or acrylic glass. Typical inhabitants include fish, plants, amphibians, and invertebrates, such as snails and crustaceans.

Aquarium Fish International (AFI) was a North American monthly magazine, published by BowTie Inc. of Irvine, California, and dedicated to freshwater and saltwater fishkeeping and the aquarium/fishkeeping hobby in general.
Vittina natalensis, common name spotted nerite, is a species of small freshwater snail with an operculum, an aquatic gastropod mollusk in the family Neritidae, the nerites.
Lists of aquarium life include lists of fish, amphibians, invertebrates and plants in freshwater, brackish and marine aquariums. In fishkeeping, suitable species of aquarium fish, plants and other organisms vary with the size, water chemistry and temperature of the aquarium. The lists include:
An aquarium is a vivarium of any size having at least one transparent side in which aquatic plants or animals are kept and displayed. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, aquatic reptiles, such as turtles, and aquatic plants. The term aquarium, coined by English naturalist Philip Henry Gosse, combines the Latin root aqua, meaning 'water', with the suffix -arium, meaning 'a place for relating to'.

Nano aquariums are aquariums with the emphasis on small scale inhabitants inside smaller sized aquariums. They can be either freshwater nano aquariums or saltwater nano aquariums. Nano fish species are chosen from any smaller sized species of tropical fish. Other possible inhabitants are freshwater and seawater shrimps. Any plants for a nano aquarium also have to be of the smaller species.