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Serpae Tetra - Hyphessobrycon eques

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Item: 213347

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The Serpae Tetra (Hyphessobrycon eques) has a red body that varies from pink to crimson. The dorsal and ventral fins are black with a slim white edge. There is also a black marking behind the gill on each side. They are small tetras, but very robust and can be kept with larger community fish without problems in many cases.

Many tropical community aquariums are populated with tetras, rasboras and other similar schooling fish. Though these fish are rather small, their pleasant temperaments, the schooling behaviors they exhibit and a vast variety of colors and shapes make them popular in the hobby. They can grow anywhere from a few centimeters to a few inches, and can add movement to a freshwater fish tank. Most of these fish are fairly easy to care for and have similar water chemistry and care requirements.

Tetras are probably the the largest group of fish offered for community aquariums. They can be distinguished from other schooling community fish by the small adipose fin present between the dorsal fin and the tail. Tetras include small species that may stay under one inch in length and are suitable for community aquariums to much larger and more robust species that can grow up to several inches and need more aggressive tankmates.

These fish prefer aquariums with plenty plants and ornamentation to explore, but also need plenty of open space to swim. They can be fed commercial flakes, granules and small pellets as a staple diet, with occasional feedings of meaty frozen or freeze dried treats such as bloodworms, plankton, mysis or brine shrimp. They prefer to be kept in groups of six or more to school and feel secure. Fish not kept in proper schools may be stressed and remain hidden or may become extremely nippy and aggressive.
Common NameSerpae Tetra
Scientific NameHyphessobrycon eques
OriginSouth America
Max Size (in inches)1.5
Community SafeYes
pH Range5.5-7.5
Min Tank Size (in gallons)10
Temperature Range72-78

Ratings & Reviews

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great fish


these fish are great for community tanks. they are schooling fish so be sure to get 3 or more. they are very Interesting to watch and they will watch back.

Colorful active and nippy in own group.


I bought 5 of these along with a group of zebra danios, Lemon Tetras to cycle a 55 gal tank in 1999. They all survived the cycling. The Serpaes were active schooling fish. I never noticed them nipping the other fish, but they were argumentative with each other. I even lost one somewhere in my tank. We couldn't find this fish anywhere. We thought it had died and was eaten. A month later or so, it showed back up schooling with the others missing its back fin. It had obviously been in a fight with his friends and hid to heal. WE didn't know that. Because of the way it swam difernently, we thought it was suffering and put it to sleep. Imagine our shock and horror when we later visited the local fish pet store and found other sepaes with similiar battle damage and learned this was a regular occurence. I was so heartbroken. Needless to say, we now know better. This fish needs a school. Otherwise, it will bully other fish. It will bully each other. Otherwise, it is a nice colorful additon to a tank. Just please, do not put with delicate, shy or slow moving fish.