Cat-eLog Right Arrow Clariidae Right Arrow Clarias

Jump to next section Cat-eLog Data Sheet
Scientific NameClarias batrachus  (Linnaeus, 1758)
Common Name(s)Common Walking Catfish
Clarias Catfish, Albino Walking Catfish, Piebald Walking Catfish
Type LocalityAsia.
Synonym(s)Clarias assamensis, Clarias assamensis, Clarias punctatus, Silurus batrachus, Silurus batrachus
Pronunciationklar ee ass - bat rah chus
EtymologyClarias: From the Greek chlaros, meaning lively; in reference to the ability of the fish to live for long periods out of water. 
Jump to next section Species Information
Size 400mm or 15.7" SL. Find near, nearer or same sized spp.
IdentificationClarias species are characterized by having an elongated body; a soft rayed dorsal fin extending to, or nearly to, the caudal fin base; a soft rayed anal fin extending from just behind the anus to the caudal fin base; pectoral fins each with a serrated anterior bony spine; head depressed, covered largely by firmly sutured, surface sculptured bony plates forming a protective helmet; four pairs of flagellate barbels (nasals, maxillaries, inner and outer mandibulars); air breathing organs derived from the 2nd and 4th epibranchials within a superbranchial chamber.

Shown above are the mottled or marbled colour variety and also the more commonly available pinky-white form. From time to time you also see the ''original'' brown with white belly wild form.
SexingMature males have small spots along the dorsal fin; it is not known if this also applies to the albino colour variant.
Jump to next section Habitat Information
DistributionSri Lanka, Eastern India to Malaysia
Sri Lanka Waters (click on these areas to find other species found there)
Indian waters (click on these areas to find other species found there)
Myanmar Waters (click on these areas to find other species found there)
Thailand Waters (click on these areas to find other species found there)
Bangladesh Waters (click on these areas to find other species found there)
Indonesian Waters (click on these areas to find other species found there)
Pacific, Malaysia Waters (click on these areas to find other species found there)
Show it on a map (Click the map-icon to show/hide map of species distribution)
IUCN Red List StatusLeast Concern
pH5.6 - 8.0
Temperature20.0-26.0°C or 68-78.8°F (Show others within this range)
Other ParametersUnimportant, the fish will prosper in a wide range of PH and water hardness.
Jump to next section Husbandry Information
FeedingAnything; this fish is totally omnivorous and will gorge itself on most offerings.
FurnitureVery well rooted plants and large structures that provide some shade. Appropriately sized clay pipes seem to provide a readily accepted, if less cosmetically pleasing, hideaway for these fish.
CompatibilityKeep with large robust fish; anything small enough will be eaten. These should be fast growing or introduced as semi-adults. The walking catfish grows very fast indeed and although purchased at a ''safe'' size for it's co-inhabitants, this ratio will rapidly change to the danger of the smaller fishes.
Suggested TankmatesLarge Cyprinids (Silver Sharks, Tinfoil or Spanner Barbs for example) or Central American Cichlids.
BreedingSee Shane's World article.
Jump to next section Further Information
ReferencesSystema Nat. ed. 10v. 1 - pp305
Registered Keepers(1) cymrucat (k: 3), who also notes: " I couldn't believe these lovely things were on sale ! They had arrived at the shop due to an error in the order too ! I love their vertical floating. they have now grown and are getting a bigger tank,very relaxing to watch. And boy don't they grow!", (2) juree, (3) LUISGOREY, (4) miller, (5) MADRacing, (6) zedogz (p: 9), (7) doesdavid (k: 4), (8) Shovelnose, (9) miles44 (k: 2), (10) straitjacketstar (k: 5), (11) Reginator (k: 2), (12) paul, (13) jessey, (14) Redtailrob (k: 2), (15) TheSmurfinator, (16) JamieH, (17) jscoggs27 (k: 7), (18) Irish Goliath, (19) Yellowpieslinger, (20) Mezel (p: 2), (21) Jaesyr, (22) arapaimag (k: 2), (23) diikis (p: 5, k: 5), (24) Sargy60, (25) james gilbertson, who also notes: "Love this greedy beast, its growing like crazy and my sons best fish", (26) agusmeteor (k: 7), (27) Cristoffer Forssander, (28) merit, who also notes: "Was piebald, one of the best fish in general. Very smart, i sold him for its size!! Never forgot this fish, now i'm searching for a smaller specie of clarias.", (29) r4heel, (30) Harford2073, who also notes: "It is called Desmond, but is it a boy or a girl? Looking for a bigger tank and some company for it now.", (31) liamirons, (32) mikemaes, who also notes: "Ate a lot of tetra's, 3 Baby Bala Sharks, 2 baby Barbs, a couple of Kuhli's, started feeding it mussels and white bate fish, he also love's cichlid sticks, granulate and mini catfish pellets. Amazingly he does'nt seem to eat my Japonica Shrimps. grew 5cm in 3 months and got more bulk, i created a cave complex and build the entire tank to his needs, great fish, does'nt trash everything because he has his own cave, despite many plants in the aquarium", (33) dethmann, (34) NickFishnut.

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Breeding Reports(1) Cristoffer Forssander (b: 38).
Articles
Article - Shane's World Reproduction Successful spawning of the wonderful WanderWels, Clarias batrachus
Article - CotM 2000 June
Article - Shane's World Reproduction Triggering reproduction with the Walking Catfish (Clarias batrachus)
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Last Update2013 Jul 19 13:18 (species record created: 2001 Apr 25 00:00)