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Turritopsis dohrnii, also known as the immortal jellyfish, is a species of small, biologically immortal jellyfish [2] [3] found worldwide in temperate to tropic waters. It is one of the few known cases of animals capable of completely reverting to a sexually immature, colonial stage after having reached sexual maturity as a solitary individual.
Besides the intense aquarium trade, the rapid expansion of lionfish in the Caribbean and the Atlantic coast, is the greatest threat to the blue chromis, as well as several other tropical fish native to the Caribbean. Furthermore, the loss of live corals could have a definite impact on the species, though this has yet to be investigated more ...
Some species gather up fertilized eggs in their mouth and keep them safe until they hatch, a process called mouthbrooding.. Cichlid.In addition to being mouthbrooders, some species continue to protect their young after they hatch, calling out to them when there is danger, and letting them swim back into their mouth to hold them safely away.
Neon tetras are omnivores and will accept most flake foods, if sufficiently small, but should also have some small foods such as brine shrimp, daphnia, freeze-dried bloodworms, tubifex, which can be stuck to the side of the aquarium, and micropellet food to supplement their diets. A tropical sinking pellet is ideal, as most brands of these ...
Tropical fish is a term commonly used to refer to fish that are kept in heated aquariums. Freshwater tropical fish are more commonly kept than saltwater tropical fish due to the common availability of fresh water sources, such as tap water, whereas salt water is not commonly available and has to be recreated by using fresh water with sea salt additions.
Thayeria boehlkei is a species of characin fish endemic to the Amazon River basin and Araguaia River, in Peru and Brazil respectively. [2] The species is popular with aquarium hobbyists where it is traded under a variety of common names including blackline penguinfish, blackline thayeria, hockey-stick tetra, penguin fish and penguin tetra.