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Spotted Scat
Perches and Perch-like Fishes Index

Spotted Scat

Red Scat ~ Green Scat ~ Argusfish Family: ScatophagidaeSpotted Scat, Red Scat, Green Scat, Argusfish Scatophagus argus Photo © Animal-World: Courtesy Ken Childs

   The Spotted Scat is one of the most popular brackish water fish available, and it is an extremely attractive fish!

   With two color versions of the Spotted Scat, the Red Scat and the Green Scat, this fish has a lot to offer. The Green Scat is the type most commonly seen. The red subspecies, Scatophagus argus arromaculatus, is generally more expensive but is well worth searching out.

   If they are handled correctly, the Spotted Scats are a fish that is equally at home in freshwater or saltwater or anywhere in between. Their lives are usually spent in the mouths of rivers where the salinity of the water is constantly changing. Although they will do great in a saltwater aquarium, they are not usually considered for this use because their colors are not bright enough. The genus name of Scatophagus means ‘excrement eater’ and is used because of their habit of living near floating toilets in Southeast Asia and eating anything that shows up. It’s fortunate that this type of ‘food’ is not necessary to keep them in good condition!

   Be very careful when handling scats. The spines on their fins are mildly venomous and it hurts if you are unlucky enough to get stuck by one!

For more Information on keeping this fish see:
Guide to a Happy, Healthy Freshwater Aquarium

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Distribution:
   The Spotted Scat was described by Linnaeus in 1766. The species has a very large distribution, they are common throughout the Indo-Pacific region. Most seen for sale have been collected in or near Thailand. The Red Scat which is considered a subspecies, Scatophagus argus arromaculatus, is found only in Sri Lanka, New Guinea, and Australia.
   Other names this fish is commonly known by are Common scat, Butterfish, Spotted Butterfish, Argus fish, and Butter Fish.

Status:
   The Spotted Scat is not listed on the IUCN Red List.

Description:
   The Spotted Scat has a strongly compress, squarish body with a steeply slanted profile to the head. The body coloration of the Green Scat is a shiny silver with a light greenish cast. The Red Scat is similar but with a reddish cast to it that is especially notable dorsally along its back and on the fins. True to its name, there are black spots all across its body, extending onto the fins. In mature adults the spots can be faded, often only visible on the upper parts of its sides and back.

Size - Weight:
   These fish can reach up to 15 inches (38 cm).

Care and feeding:
   The Spotted Scats are omnivores. Feeding is no problem since they will eat virtually anything considered as aquarium fish food. As with any fish, a varied diet is important so be sure to feed dried, frozen and fresh foods. Flakes or pellets that contain algae and vegetable matter are also suggested.
  The Spotted Scat can get quite large so a tank of at least 60 gallons should be provided to begin with. If you do a good job and keep one in good shape, a larger tank will be eventually needed. A 15 inch fish is large but when it is shaped like a scat, it’s really large! Just imagine a dinner plate with fins and you’ll get the idea. Odds are that a tank raised specimen will never grow to full size, but even a salad plate with fins is big. Although some advanced aquarists are able to keep scats in freshwater, they really do better if kept in full saltwater or brackish water made with a good marine saltwater mix, approximately 2 - 3 teaspoons per gallon. They are very sensitive to nitrites, so make sure you have good biological filtration.
   Be very careful when handling scats. The spines on their fins are mildly venomous and it hurts if you are unlucky enough to get stuck by one!

Water Region: Top, Middle, Bottom:
  Scats will swim in all parts of the aquarium but will most likely spend most of their time near the middle.

Acceptable Water Conditions:
   Temp: 68 - 82° F (20 – 28° C)
   Hardness: 12 - 18 dGH
   Ph: 7.5 - 8.5

Social Behaviors:
  They are a peaceful species that do best in groups of at least four. Spotted Scats are very lively fish, but they do eat plants. They will not bother other fish unless those fish are small enough to be considered a meal.

Sexual Differences:
   Sexual differences are unknown.

Breeding/Reproduction:
  This species of Scat has never been bred in captivity.

Availability:
  Both the Red Scat and Green Scat are commonly available. The price of the red version is usually quite a bit higher than that of the green.

 

Author: Ken Childs





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