Rainbow Shark

by Fish Tank on September 20, 2007

Scavenging for food in the gravel, Soumyakundu's Rainbow Shark is a beautiful example of the Epalzeorhynchos frenatum species. A member of the Cyprinidae family, this fish is commonly stocked in the freshwater community fish tank.


The rainbow sharks blackish-green body is accented by colorful reddish-orange fins. Also known as the Red-finned Shark, or Ruby Shark, this fish is primarily a bottom, and mid-level dweller. They're happy eating most anything. Spinach, lettuce, tubifex worms, algae, and leftover fish food, make them happy.

The Rainbow Shark is a semi-aggressive fish, which can also be very territorial. It's suggested you have just one in the tank, and fish in similar size. Also, it's best to avoid combining the Rainbow Shark with other freshwater sharks, such as the Red-Tailed Shark and Black Shark. Here are a few more characteristics to consider:

  • Grows to 6 inches
  • Tank parameters: 73-80 F; pH 6.5-7.5; KH 10-15
  • Minimum tank size is 30 gallons; 50 gallons preferred
  • Requires moderate care
  • The rainbow shark is an Omnivore

Rainbow sharks are compatible with most barbs, danios, loaches, plecostomus, and the gourami. You just have to make sure and leave them space to establish a territory.

Breeding the rainbow shark in an aquarium setting isn't done due to the sharks aggressive behavior. If you've got the room in your fish tank, and proper companions, the rainbow shark can be a fun fish to keep.

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