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Java Loach

Black Kuhli Loach

Family: CobitidaeJava Loach or Black Kuhli Loach PicturePangio oblongaPhoto © Animal-World: Courtsey Ken Childs
Latest Reader Comment - See More
Is it strange that my loach likes to sit directly under my black skirt tetras as if its schooling with them?  Trey

   If you like the wiggly action of the banded kuhli loaches, but enjoy a more streamlined look, the Java Loach or Black Kuhli Loach could be just the fellow for you!

   Typical of the loaches in the genera Pangio, the Java Loach or Black Kuhli Loach spends its time actively scurrying around, over, and through the plants and ornamentation. It is scavenging for leftover foods that have settled on the bottom of the aquarium. A great little helper in keeping the aquarium clean and in good shape.

   Though active at night (as they are nocturnal) they are quite undemanding, though they do prefer to be fed at the end of the day. They are peaceful with other tank mates, and though they are not a schooling fish, they will be more likely to come out of hiding if you keep them with several of their own species. Having like companionship makes them more prone to behave as they would in nature. They are quite hardy and can live for several years.

   The Java Loach or Black Kuhli Loach is sometimes referred to as an 'unbanded coolie'. It has a body and head that is a uniform reddish brown color (slightly lighter on the underside), with a single black bar at the base of the tail. There are also several other noteworthy unbanded species in the Pangio genera, including the Cinnamon Loach Pangio pangia (previously Acanthophthalmus pangia) and Pangio borneensis (previously Acanthophthalmus borneensis).

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


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Geographic Distribution
Pangio oblonga
Data provided by FishBase.org
  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Actinopterygii
  • Order: Cypriniformes
  • Family: Cobitidae

Care and feeding:    Since they are omnivorous, the Java Loach or Black Kuhli Loach will generally eat all kinds of small live and frozen foods and meat based foods are relished the most. They also like sinking pelleted and tablet foods, flakes, and a bit of vegetable foods such as algae wafers. To keep a good balance give them a high quality prepared food everyday. Feed tubifex worms, brine shrimp (either live or frozen), mosquito larvae, and daphnia as a treat.
   This fish will do well in a smaller aquarium (ideally 20 gallons or so) with lots of plants and places for retreat, such as rocks, caves, and roots. Also use subdued lighting. They do best in soft, slightly acidic water with frequent water changes of about 10% a week. The substrate needs to be a fine gravel or sand that does not have sharp edges and they will also enjoy a bit of organic mulm or peat moss spread over the substrate.

Distribution:    The Java Loaches are found in Asia; Vietnam, Laos, Cambodia, Thailand, Malaysia and Indonesia. Also possibly from India, Myanmar, and Bangladesh. They live as scattered individuals in shallow sandy areas of rivers and streams.

Size - Weight:    These fish can get up to just over 3 inches (8 cm).

Social Behaviors:    A peaceful community fish and a great scavenger of uneaten foods that settle to the bottom of the aquarium. They hide during the day, but are quite lively and active in the evening. Though they do not school, they will be more likely to come out of hiding if they are kept with some companions. A singly kept Java Loach will seldom be seen.

Sexual Differences:    Unknown.

Water Region: Top, Middle, Bottom:    These fish are mostly bottom dwellers.

Acceptable Water Conditions:    Hardness: to 8° dH
   Ph: 6.3-6.5
   Temp: 73-77° F (23 - 25°C).

Breeding/Reproduction:    Not much is known about the breeding habits of the Java Loach or Black Kuhli Loach, and they are not yet bred commercially.

Availability:    The Java Loach or Black Kuhli Loach is often readily available.

Author: Clarice Brough. CFS.


Lastest Comments on Java Loach

Trey - 2011-08-20
Is it strange that my loach likes to sit directly under my black skirt tetras as if its schooling with them?

Reply
dain - 2009-08-12
I have 3 java loaches and I love them. I hope that I can get some more varieties of loaches and get a bigger tank. I am only 11 and got my fish only a couple of months ago. I think they have eaten my baby snails and are very active.

Click For Replies (1)
  • Charlie Roche - 2011-08-19
    They will eat baby snails - but glad you are enjoying
Reply
markii - 2011-03-01
Hey I'm just wondering where can I buy one I live in ireland and I'm looking for one any suggestions?

Click For Replies (1)
  • Jason Lucas - 2011-03-20
    Go to one of the many websites that ship tropical fish internationally I just bought a black kulhi loach today and they are interesting little critters and very easy to take care of, supplement their diet with algae wafers they love them.
Reply
j pardew - 2011-04-13
Is it safe to keep 2 loaches in a 10 gallon tank with like 4 molly fish and 1 glass catfish?

Click For Replies (3)
  • Charlie Roche - 2011-04-14
    It would be preferable to have a larger tank. I was told just a basic rule of thumb to limit 1 inch of fish to one gallon of water. A ten gallon tank minus gravel, plants etc is about 8 - 9 gallons. Molly is 2 inches and Loach is 3 so 4 mollies is 8 inches and Loach is another 3. Then you want to add another Loach so 14 so should have at least a 15 gallon tank. There isn't science in this just from my son-in-law who has had fish for 20 years.
  • Clarice Brough - 2011-04-14
    You should be okay, but there are a number of factors that could come into play like tank size and decor. 10 gallons may be too small and loaches do need hiding places to be happy. Some loaches can get somewhat aggressive, especially as they get older... again tank size becomes important.
  • Heidi - 2011-07-17
    I kept 2 Kuhlli loaches in a ten gallon with some mollies and platies until I decided I wanted something bigger. Now they're in a 35 gallon with Pictus catfish, other loaches, a swordtail, 2 danios, a betta and even an Australian lobster and they all do fine. The Kuhlis just hang out at the bottom with the catfish and the African dwarf frogs. They don't even go hide in a cave. They just sit there for all to see.
Reply
daphne - 2010-02-22
Two of my seven loaches are getting busy as I type! I have a few aquariums, but the one in question is a simply, a fully live planted tank with only a few snails, some harlequin rasboras, and the loaches. One of the largest loaches is swimming in a circular pattern, up and down, along the left vertical wall of the tank. These two have been doing this for days. From what I've read, this is the beginning of the mating cycle.

It is set to rain in a few days, and an expert told me to do small water changes until then. When the weather is supposed to change, I am to do a thirty to forty percent water change, and then over the next couple of days I am to watch for floating eggs at the water's surface. I use elodea and other floating plants, so I hope the eggs will last until I find them.

If these two get it on, I'll get back to you!

In the meantime, here's my advice:

Buy the loaches in large, uneven amounts, of over nine. Keep the water warm, flowing, and full of live plants. If you must have other fish in the tank, make sure they are small. Buy a few caves, or bury plastic cups or terra cotta planters halfway in sand.

I wish you the best of luck with your loaches!

P.S. Buy frozen bloodworms once a month, at least. They LOVE them.

Click For Replies (1)
  • Shareallicu - 2010-10-09
    Hi, I am new to keeping Kulhi loaches. I saw them at the pet store and thought they looked interesting and fun: I was looking for something a little different from the "regular" type fish, of which I've kept most of my life.

    I asked the salesman if they liked companionship or if they were social amongst themselves (so I would buy more than one) he said no. I had a feeling he was wrong, but didn't want to buy too many if they were aggressive to each other. So I bought two.

    They burrowed together and laid next to each other ALL The TIME! I found that my instincts were right in the first place! They were social. So i went back about 2 weeks later and just bought 2 more. I will be watching them to see how the 4 get along.

    I wish I read your comment about keeping a lot of them together beforehand, but live and learn i guess hehe.

    I will give them bloodworms tonight, thanks for the info! :)
Reply
conor - 2010-06-24
HELP! I bought 2 kuhli loaches 2 wks ago! They were doing great for the first wk BUT now BOTH are erratically swimming on their backs and are just sitting on the bottom or in plants. They have everything they need (plants, rocks, hiding spots, etc) HELP! I don't know what to do!

Reply

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