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The Yoyo Loach Botia almorhae is a very pretty fish. It is basically a silver color with dark vertical bands. Healthy Yoyo loach specimens will also display a beautiful prismatic light blue that blends from the edges of the dark bands into the silver body color. This may be an indication that they are in breeding condition, but has not been established for certain.
The Yoyo Loach is a Botia that comes from India and Pakistan. The specimens that come from Pakistan are darker than the lighter colored fish from India. It is thought that the fish from India may be a subspecies or entirely different species. Variations depending on local populations are common.
This gorgeous fish is suitably named the Pakistani Loach because of its origins, and the name Almora Loach is derived from its scientifically description. But the coining of the name "YoYo Loach" has an interesting story. Ken Childs, the photographer of the photo above, worked in the aquarium fish import business for over 20 years. One day when a shipment of these loaches arrived, he remarked that these fish were bouncing all over the place just like yo-yo's. They also had an easily recognized patterning that tends to look like a "Y-O-Y-O" too. They quickly became dubbed the YoYo Loach, and it then became its common name in the industry.
These fish are generally quite peaceful and though the The Yoyo Loach may tussle with members of their own species, they don't really harm one another. They do well in a community aquarium with other less aggressive species, but they can hold their own with mildly aggressive tank mates. Though most of the loaches are nocturnal, the Yoyo loach, once acclimated and comfortable with its surroundings, will come out during daylight hours and scavenge for food in rocks and crevices.
The Yoyo Loach Botia almorhae was described by Narayan Rao in 1920. It is found in India and Pakistan. This species is listed on the IUCN Red List as Least Concern (LC) because it has a widespread range and is quite hardy. There are some potential threats to the habitat from deforestation and they are fished for the ornamental trade, but any negative impacts are undetermined at present. Other common names they are known by are Pakistani Loach, Almora Loach, Reticulated loach, Pakistan Loach, Yo Yo Loach, and Y-Loach.
In nature it prefers still and slow running waters. This loach is considered a riverine species that It prefers still and slow running waters. It usually congregates in pools and still areas with rocky substrates. These loaches spawn upstream prior to breeding. These loaches tend to be mostly carnivorous but will eat aquatic vegetation if available.
Scientific Name: Botia almorhae
Social Grouping: Groups
IUCN Red List: LC - Least Concern
The Yoyo Loach can get fairly good sized, reaching up to 6 inches (15.5 cm). Their life span is generally about 5 - 8 years, though they been reported to live up to 16 years.
This is a very pretty fish. It is basically a silver color with dark vertical bands. Healthy Yoyo loach specimens will also display a beautiful prismatic light blue that blends from the edges of the dark bands into the silver body color. It's body pattern seems to spell out the word Yoyo. This may be an indication that they are in breeding condition, but has not been established for certain.
Size of fish - inches: 6.1 inches (15.49 cm)
Lifespan: 8 years - This fish generally has a lifespan of about 5 - 8 years, but have also been reported to live up to 16 years.
Fish Keeping Difficulty
This loach can be hardy under the right conditions. They are not recommended for beginners because of their need for pristine water and having small body scales. Reduced scales makes them more prone to disease and very sensitive to medications used to treat disease. Experience in treating scaleless fish is very important to be able to give your loach a healthy and long life. Do not try to introduce these fish into biologically immature tanks.
Aquarium Hardiness: Moderately hardy
Aquarist Experience Level: Intermediate
Foods and Feeding
Since they are omnivorous, the YoYo or Pakistani Loach will generally eat all kinds of live foods. They like tablets and frozen foods as well, but flake foods are not suggested. Feed brine shrimp (either live or frozen), mosquito larvae, tubifex, daphnia, and some vegetable foods such as algae wafers. If your Yoyo loach doesn't eat right away, try live blood or tubifex worms. They will readily come to the top at feeding time and often turn while feeding and make sucking noises.
Diet Type: Omnivore - Mainly carnivorous in nature.
Flake Food: Yes
Tablet / Pellet: Yes
Live foods (fishes, shrimps, worms): Most of Diet
Vegetable Food: Some of Diet
Meaty Food: Most of Diet
Feeding Frequency: Several feedings per day
The most important thing for these loaches is that they always have clean and well-oxygenated water. Frequent water changes of about 30% a week are needed for the Bengal Loach. With your weekly water change make sure to vacuum the gravel to remove all excess food and waste. Make sure not to remove the bio film on rocks and decor. A magnet algae cleaner normally does a great job in keeping the viewing pane clear.
Water Changes: Weekly - Water changes of about 30% weekly.
The Yoyo Loach will swim mostly on the bottom of the aquarium, but will also swim in the middle of the aquarium. This fish does fine in a medium sized aquarium (20 gallons or so). Never introduce this loach into a biological immature setup as these fish require pristine water. They do best in soft, slightly acidic water with subdued lighting. They also need good water movement that provides plenty of oxygenation. The tank water should turnover at least 10-15 times per hour. An undergravel filter is a great choice for these fish as it creates high oxygen through out the tank as well as reducing the waste. Adding a canister filter or power head to the setup will make the proper current for this loach.
It is recommended to have a tank set-up that resembles its natural habitat with plants, open areas to swim, and places for retreat. Because they are burrowers, the substrate needs to be a fine smooth gravel or sand that does not have sharp edges. The tank needs to have ample hiding places for this shy fish such as rocks, caves, and roots. These loaches are very inquisitive and like to explore so make sure to have a lot of caves and crevices. These fish can and will jump out of the tank if given the chance so make sure to have a tight fitting cover.
Minimum Tank Size: 20 gal (76 L)
Suitable for Nano Tank: Sometimes
Substrate Type: Sand/Gravel Mix
Lighting Needs: Low - subdued lighting
Temperature: 75.0 to 86.0° F (23.9 to 30.0° C)
Range ph: 6.5-7.5
Hardness Range: 3 - 10 dGH
Water Movement: Weak
Water Region: Bottom - These fish are mostly bottom dwellers, but will occasionally swim in the middle or upper parts of the aquarium and will come to the surface when food is offered.
The Yoyo Loach is a good community fish. Though they hide during the day, they are lively and active in the evening. They are peaceful but they can hold their own with mildly aggressive tank mates. Monitor closely if long finned slow swimming fish are added.
They should be kept in groups of 6 or more of their own kind. They may seem aggressive with members of their own species and other loaches, but this is usually the means of establishing a hierarchy. Their colors will actually "grey out" during conflicts, but it is nothing to be concerned with.
Temperament: Peaceful - They are peace but a bit boisterous.
Same species - conspecifics: Yes - Best kept in groups of 6 or more, but they will tussle for dominance.
Peaceful fish (): Safe - May stress smaller fish.
Semi-Aggressive (): Safe
Aggressive (): Threat
Large Semi-Aggressive (): Threat
Large Aggressive, Predatory (): Threat
Slow Swimmers & Eaters (): Monitor
Shrimps, Crabs, Snails: May be aggressive
Plants: Monitor - Make sure all plants are securely anchored.
Sex: Sexual differences
Full grown females will be rounder.
Breeding / Reproduction
Not much is known about the breeding habits of this loach and they are not yet bred commercially.
Ease of Breeding: Unknown
Loaches are more susceptible to disease than other aquarium fishes. This may have to do with the faint body scales and no head scales. So take caution when introducing these fish to an established tank. They are also very sensitive to different medications used to treat many diseases; a separate hospital tank is needed. Cold water and condition changes can also cause stress to this fish which makes them even more prone to disease.
Most common disease that affects this loach is Ich. Ich is short for Ichthyophthirius, also known as "white spot disease". It is a parasite that can attack nearly all aquarium fishes, but you'll find that loaches are often the first to be attacked. Take great care in treating ick as loaches are very sensitive to the medications used to treat it. Often the dose is half of what is normally used.
The second most common thing that affects loaches is a thing called skinny disease. This can be diagnosed fairly easily. If your loaches are eating a nitrous and healthy amounts and still seems to loose weight it is a good chance it has skinny disease. This is caused by internal parasites and can be treated with medication if used carefully.
An outbreak of disease can often be limited to just one or a few fishes if you deal with it at an early stage. When keeping these sensitive types of fish, it is common to catch deteriorating water conditions and disease before other fish are affected. The best way to proactively prevent disease is to give your Yoyo Loach the proper environment and give them a well balanced diet. The closer to their natural habitat the less stress the fish will have, making them healthier and happy. A stressed fish will is more likely to acquire disease.
Anything you add to your tank can bring disease to your tank. Not only other fish but plants, substrate, and decorations can harbor bacteria. Take great care and make sure to properly clean or quarantine anything that you add to an established tank so not to upset the balance. It is recommended to read up on the common tank diseases. Knowing the signs and catching and treating them early makes a huge difference. For information about freshwater fish diseases and illnesses, see Aquarium Fish Diseases and Treatments.
The Yoyo Loach or Pakistani Loach is usually available at pet stores and online, and is moderately expensive.
sheila Elaine - 2015-08-07 I have a yoyo in my 30g who gets along with everyone. Some chasing going on but no big deal. What I am wondering About is she is 'fat'. She lays on her side And someone on her back. Freaks me out!! I rush to check her and off she goes. Do they all do this and is it normal for them to be so great?
Clarice Brough - 2015-08-08 It sounds like your Yoyo Loach is eating too much. These fish are prone to getting fat bellies when they over-eat, often they manage to get the food intended for the other fish as well as their own food.
Teagan - 2015-10-06 Female yoyo loaches will develop a large rounded belly when they are ready to spawn. This is the eggs building up in her tummy. If there is no male nothing will come from it and after a few weeks she will lose the belly. It is completely normal for them to lay on their side, backs, or even crammed into the weirdest of places. Mine likes to wedge herself between the sail and mast on one of the ornaments in my take. Kinda like an upright hammock. And yes, they do look like they are dead when they do this. Until you notice they are looking at you. They have funny personalities and with mine I have noticed chasing but she never appears to nip at fins. She just seems to like the thrill of the chase. So this is completely normal behavour for your yoyo loach. Mine also became feiends with my rainbow shark and can often be seen swimming and resting together.
Aalsen Geertsma - 2014-09-13 They're ravenous when it comes to food and snails, and they're quite fearless when they discovered eggs. They love digging for all kinds of snails, or dwarf shrimp. But they failed stealing eggs from hole breeding L-numbers or apistogramma cacatuoides. They're quite energetic and acrobatic here, and will swim full lengths of a tank in a display of dominance. I think it's best to keep them with other species of fish which aren't shy, because they bump into other fish on purpose quite often. Corydora's don't appreciate this, most tetra's neither. I have 7 of them in a 240 litres tank, they'll transform a still life aquarium into a more dynamic one, without agression. Nematobrycon palmeri is a superb combination with these botia's.
Oh and did anyone notice they have spikes under their eye's? My 8cm adult botia has spikes of approximately 4mm, she got stuck in a net...
Laurel - 2014-10-29 Hi I have had a few Yoyo loaches and I have to disagree about the size they get in an aquarium. I a few in a 75g with angels and a few other fish and they are about a year old now and they are a 5-6 inches now, the male being a little smaller then the female.
Terri - 2015-01-31 Where can one purchase Yoyo loaches?
Stephanie Ann Goetsch - 2015-02-18 I agree, mine has grown to 3' (at least) in a 10 gal. tank!
Amanda A - 2015-03-26 You can't have a 3' loach in a ten gallon tank that is less than 2' long.
Clarice Brough - 2015-07-10 The size has been corrected, thanks for bringing it to our attention and do contiune to enjoy the site.
Terrian - 2015-07-09 This site is so helpful except when they perpetuate this very unhelpful myth... that fish somehow stop growing in aquariums... it isn't true. Fish will grow to their natural size and outgrow any tank that is too small. I wish they would edit these statements out of this site. It really misdirects new aquarists who don't know better.
Babs - 2012-04-28 I've just given away two pakistani loaches after keeping them for eight years. They have bullied and hounded every fish in my tank to the death. Beautiful fish to look at, fascinating to watch but down and out bullies. Would never give them a place in a tank again.