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Jump to Types of Livebearer Fish - They are now found in all tropical and subtropical areas. Splitfins or Mexican Topminnow - Goodeidae
Freshwater tropical fish are some of the most beautiful creatures in the water. However, they are not all the same. Knowing about the different types of freshwater tropical fish before you set up your tank is important for the health of your fish. Different types of freshwater tropical fish have different personalities, with some being aggressive and others being peaceful. Moreover, many have special needs that should be considered before adding them to your tank.
Gouramis are omnivores and must be kept on a varied diet to get all necessary nutrients – and as with all other tropical fish, it is quality food that promotes the development of those gorgeous colours. Gouramis are usually eager and happy eaters in the aquarium and will accept most food types. They are also quite sturdy and will often survive even on a less than optimal diet, but such a diet will make them more prone to illness and, more importantly – they will not look their best. Dry or frozen prepared foods are a good base that can be supplemented with live foods. Fresh vegetables are also a good addition, e.g. lettuce and peas. Gouramis love brine shrimp and all kinds of worms, like glass, black, or blood worms. When your gouramis are in a community setting, larger, quick-swimming fish can scare them away from their food, but they can generally hold their own, and they may in turn chase smaller fish from food.
List of freshwater aquarium fish species - Wikipedia
Pet Fish for Sale: Tropical and Freshwater Fish | PetSmart
Whilst this list is just a small example of the types of fish you can keep at home in a beginner aquarium, we believe that these 13 are perfect for those with little experience, and each tick all the boxes we mentioned before, when looking for tropical freshwater fish.The livebearers appeared late in the evolutionary process about 44-38 million years ago during the Oligocene and Miocene periods. They did not originate on all continents, only on the Americas and in Asia. Because they feed on mosquitoes and their larvae, some like the Guppies and Mosquito Fish, were introduced into swampy areas of Southeast Asia and the Philippines to help control malaria mosquitoes. From those locations they spread to just about all tropical and sub-tropical waters, even into southern Europe.These fish have been in the aquarium hobby for a very long time. They were first introduced into Europe in the 1890's and were quite expensive. But these livebearing fish readily reproduced in the aquarium quickly and became very available, so prices soon dropped. Rarer species, however, have only been imported as recently as the 1960's.There are visual clues to identify them, just as there are with other types of fish. While a visual clue to identify a Characin is having an fin, the small fin just behind the dorsal fin, a visual clue to a live bearer is the specialized anal fins of the male livebearer. As the male fish mature, the middle rays of the anal fin are modified into a narrow copulatory organ called a or andropodium, depending on the family.The shape of the gonopodium or andropodium differs among genera and even species. On Live-bearing Toothcarps (Poeciliidae) the gonopodium has a hook or claw on the end and on the Four-eyed Fish (Anablepidae) it is pipe shaped, greatly elongated and fused into a tube. On the Splitfins or Mexican Topminnows (Goodeidae) and the LIve-bearing Halfbeaks (Goodeidae) only part of the fin is modified.Livebearers have an advantage over the egg laying fish. The young can immediately hide from predators from the moment of birth. The young of these fish are born live and almost fully developed, but watch the parents as they will eat their fry. There is also an advantage to breeding them in the aquarium. Because they don't lay eggs, the aquarist doesn't have to be concerned with loosing the hatch due to the eggs succumbing to fungus.