Archive for April, 2007

Characteristics Of The Serpae Tetra Fish

By George Chao

Are you looking to create a tropical aquarium? Do you want to add more fish to your existing aquarium? If so, consider getting the serpae tetra fish. Serpae tetras are community fish that will mix well with other fish. Whether you are a seasoned aquarist or someone who is only starting to discover the wonderful world of aquarying, the serpae tetra fish is a good choice for your aquarium. Serpae tetras are community fish that are easy to keep. They are hardy fish and mix well with small fish in an aquarium.

Originally from South America, Peru and the Amazon River basin, the serpae tetra fish is sleek, tall and compressed. A serpae tetra fish typically grows up to 2.2 inches long. The female serpae tetra fish is generally a bit more rounded than its male counterpart. The color of the serpae tetra fish’s body can range from bright red to reddish brown. The serpae tetra fish’s ventral and anal fins are red. Its dorsal fin, however, is black with white fringing. A black spot can be found behind its gill cover. As the serpae tetra fish ages, this black spot slowly become smaller.

If you are thinking of getting serpae tetras, make sure that your aquarium is well planted. Serpae tetras love live plants and driftwoods. While the serpae tetra fish can tolerate being in an aquarium with low temperatures, it is best that you keep the temperature between 68 and 82 degrees Fahrenheit to keep your serpae tetra fish happy.

The serpae tetra fish is an easy fish to care for and to feed. A serpae tetra fish will eat everything from flakes to live, freeze dried and frozen foods. Give your serpae tetra a variety of diet. If you have several serpae tetras, you will notice that they will nip at each other’s fins while you feed them in an effort to grab for food.

Serpae tetras are community fish. However, it is recommended that you do not mix your serpae tetra fish with neon tetra fish because serpae tetra fish can be a bit too aggressive for the neon tetra fish to handle.

You will typically find serpae tetras swimming in the middle and bottom areas of the aquarium tank. In general, serpae tetras do not bother other fish in the tank. However, serpae tetras love to play with and chase each other around the tank.

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Cardinal Tetra

By Allen Jesson

The Cardinal tetra is similar to more frequently kept Neon tetra, but is much more difficult to breed in aquariums. Since both species look similar to each other at first glance, they are sometimes mixed up with each other and the Cardinal tetra is sometimes erroneously referred to as “red neon tetra”. Telling them apart is however not very difficult. Both species have a characteristic sparkling blue line that bisects the body, and under this line you will notice a red lateral stripe. If this red coloration extends only halfway to the nose of the fish, you know that it is a Neon tetra. If the red coloration instead extends much longer, you are looking at a Cardinal tetra. The red coloration of the Cardinal tetra was thought to resemble the long red robes worn by cardinals, hence the name. The scientific name of this species was given to it in honour of a highly regarded ichthyologist.

Since the Cardinal tetra is quite difficult to breed in aquariums, a majority of the Cardinal tetras in the aquarium trade has been wild caught. The native habitat of the Cardinal tetra is the upper Orinoco and Negro rivers in South America, where the water is acidic and very soft. Fortunately enough, the Cardinal tetra is very prolific in the wild and is not considered an endangered species. It is only reluctant to breed when kept in aquariums. In the wild, it is uncommon for a Cardinal tetra to grow older than one year. When you keep Cardinal tetras in aquariums without any predators around, you can however make them survive for several years.

The Cardinal tetra can be kept in community aquariums with other peaceful species that appreciates the same water conditions. It will usually stay smaller than 2 inches in length and a group of Cardinal tetras do not need a large aquarium to do well. This species is rarely found in beginner aquariums since it is quite scarce in the aquarium trade, but it is not overly sensitive and a dedicated beginner aquarium keeper that is prepared to monitor the water chemistry and perform frequent water changes can usually make his or her Cardinal tetras thrive. It is especially important to keep down the level of nitrate. The Cardinal tetra is a schooling fish and keeping at least ten specimens is recommended, since this will make the fish less shy and stressed. Cardinal tetras are also much more beautiful to watch when they form a big school, and living in a school makes them display a much broader variety of natural behaviours.

When you set up an aquarium for your Cardinal tetras you should ideally try to make it similar to the native habitat of the fish. A well planted aquarium that contains floating species is recommended, but you should also leave an area open for swimming. The water should be acidic and very soft. Keep the pH in the 4.6-6.2 range and the d G H under 4. Cardinal tetras can adapt to harder water and even alkaline conditions, but they will be much more sensitive and prone to illness. The recommended temperature range is 73-81° F (23-27 ° C) or even warmer.

Allen Jesson writes for several sites including two sites that specialize in salt water and fresh water aquariums and the aquarium site and Seapets, a leading source for aquariums and fish tanks.

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