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Reticulate Loach© Hamid Badar Osmany / CC BY 3.0

Reticulate Loach

The Reticulate Loach — also known as the Pakistani loach or yo-yo loach — is a mid-sized loach with a silvery body marked by a bold, net-like black pattern. Native to the rocky, gravel-bottomed rivers of India and Pakistan, juveniles show Y-shaped markings that gradually shift into the adult reticulated look, giving the fish its yo-yo nickname. It settles down and shows more natural behavior when kept in groups rather than alone, busily foraging along the substrate among plenty of hiding spots. With its expressive face and playful movements, it's a popular choice among intermediate-level keepers. Since adults reach around 15 cm, plan for a tank suited to their full-grown size.

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Reticulate Loach key facts

Care level
Intermediate
Lifespan
8-12 years
Size
About 15cm
Temperature
24〜30℃
Diet
Sinking dried foods, frozen bloodworm, Tubifex, vegetables such as cucumber
Tank
Seriously Fish gives 120 x 45cm, about 243 litres, for this species group. Use sand or fine gravel with rounded stones and driftwood to create plenty of cover; its constant exploring calls for floor space.
Water Temperature & Quality
FishBase records 24-30C, pH 6.0-8.0 and 5-12dH in the wild. Seriously Fish gives 19-27.5C, pH 6.0-7.5 and 2-12dGH for the species group.
Tank Mates
Not especially aggressive, but much smaller fish are intimidated. Avoid slow, long-finned fish such as ornamental bettas and guppies, whose fins get nipped. Robust open-water cyprinids suit it well.
Diet & Feeding
Chiefly carnivorous, taking molluscs, insects and worms, but it also eats plant matter. Combine sinking dried foods with frozen bloodworm, Tubifex and vegetables such as cucumber. Soft-leaved plants may be nibbled.
Breeding & Spawning
FishBase records it as oviparous with distinct pairing at breeding time, but Seriously Fish states there are no reports of breeding in private aquaria. Trade stock is largely hormone-induced, and hybrids have appeared on the market in recent years.
Health & Notes
It settles in a group, so avoid keeping it singly, and it is not suited to a newly set-up, unstable tank. IUCN status is Least Concern.
TraitsLoachFreshwater fishBottom dwellerIntermediate

About Reticulate Loach

Learn about the Reticulate Loach (Pakistani loach), a mid-sized loach with striking black net-like markings, including its group-living habits and key care essentials before bringing one home.

7 things to know before welcoming a Reticulate Loach

  1. 1Keep in groups

    Reticulate Loaches feel most secure in the company of their own kind. Kept alone or in very small numbers, they tend to stay hidden, so plan to bring home several at once.

  2. 2Choose a soft substrate

    This bottom-dwelling species likes to rub its barbels and body along the substrate as it explores. Choose smooth, rounded gravel or sand rather than sharp-edged material to avoid injury.

  3. 3Provide plenty of hiding spots

    They favor tanks with plenty of rockwork, driftwood, or tubes to retreat into. With enough hiding spots available, they become bolder and more visible during the day.

  4. 4Be cautious with medications

    Loaches as a group are often considered sensitive to certain medications, so care is needed with dosage and ingredients when treating the tank. If you notice any change in behavior, check water quality first.

  5. 5Use a secure lid

    These fish may leap out of the water when startled or when conditions change suddenly, so a secure lid is essential. Choose one with minimal gaps to prevent jumping accidents.

  6. 6Plan for its adult size

    This is a mid-sized species that grows to around 15 cm as an adult. Even if you start with a small juvenile, plan your tank size and layout around its eventual adult length from the beginning.

  7. 7Markings change with age

    Juveniles show Y-shaped markings that gradually transform into the adult's net-like pattern as they mature. This transformation is the origin of the species' yo-yo loach nickname.

Frequently asked questions about Reticulate Loach

Q.Can it be kept as a single fish?
A.It can technically be kept alone, but it tends to hide more and show less of its naturally active behavior. Keeping several together is recommended if you want to see its true personality.
Q.Can it be kept with other fish species?
A.Its generally peaceful temperament makes it suitable for community tanks with similarly sized fish. Minor squabbles can occur between its own kind, so plenty of hiding spots help keep things calm.
Q.How difficult is it to keep?
A.This species is generally considered suitable for intermediate-level keepers. Some experience with water quality management and medication sensitivity helps things go smoothly.
Q.What should I feed it?
A.It's an omnivore that readily eats sinking pellets or tablets, and it also has a taste for snails. Choose food that sinks reliably to the bottom so it can reach the fish.
Q.Is it listed under CITES?
A.No, the Reticulate Loach is not subject to CITES.

Useful tools for Reticulate Loach care

💧Aquarium Volume CalculatorCalculate water volume, weight, and heater wattage from tank dimensions🧪Water Quality CheckerFind compatible fish, shrimp, plants & corals based on pH, temperature & hardness🍽️Feeding GuideCheck feeding frequency, portion sizes & supplements by species and growth stage🤝Compatibility CheckerCheck compatibility between two species on a 5-level scale📊Fish Compatibility MatrixCheck fish compatibility at a glance with our matrix chart🔄Nitrogen Cycle GuideAuto-calculate bacteria colonization timeline for new tank cycling🗓️Seasonal Care CalendarMonthly care events and seasonal management tips at a glance🚿Water Change CalculatorAuto-calculate optimal water change frequency and volume by tank size and fish count🐠Stocking CalculatorCalculate max fish capacity for your tank size with overstocking alertsElectricity Cost SimulatorCalculate monthly and annual electricity costs for care equipment with presets🧬Breeding PlannerSelect parent varieties to view breeding schedules and offspring patterns🏞️Tank Layout PlannerGet substrate, plant & hardscape suggestions based on tank size and style🧮Care Cost SimulatorEstimate initial, monthly & annual costs by category, care level and quantity⚖️Species Comparison ToolCompare two species side by side: care difficulty, size, lifespan & temperature🎯Pet Match DiagnosticAnswer 7 questions to find your top 3 perfect pets📋Lifetime Cost SimulatorEstimate lifespan and lifetime costs by species for dogs, cats, reptiles and more🚚Transport Safety CheckerCheck transport safety score and precautions by category, season, method and distance💊Medication Dosage CalculatorCalculate proper medication dosage by body weight and medicine type for fish, reptiles, and small animals⏱️Quarantine & Acclimation TimerManage quarantine periods and acclimation steps with countdown timers. Includes recommended durations by species

Learn more about Reticulate Loach in the encyclopedia

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