AquaNexus verified profile
Yoyo loach
Botia almorhae
A socially complex Himalayan botiid that reaches roughly 15 cm. It requires a large structured footprint, a group of at least six and careful feeding and dominance management.
Outcome: PASSED Permanent ID: 748
Profile overview
- Scientific Name
- Botia almorhae
- Identity and search names
- Yoyo loach, Almorha loach, Pakistani loach, Botia lohachata (frequent trade misidentification)
- Category
- Freshwater fish
- Subgroup
- Loaches
- Environment
- Freshwater
- Origin
- Himalayan foothill drainages of Pakistan, northern India, Bhutan and Nepal
- Care
- Intermediate
- Adult Size
- Up to about 15.5 cm standard length
- Lifespan
- 8–12 years
- Tank
- At least 300 L with a 120 cm or longer footprint for six or more
- Temp
- 24–28 °C
- pH
- 6.0–7.8
- Hardness
- Soft to moderately hard
- Salinity
- Freshwater
- Lighting
- Normal aquarium lighting
- Placement
- Bottom and lower mid water
- Diet
- Omnivore; quality sinking foods, vegetables and frozen/live invertebrates; will eat snails
- Filtration
- Use mature biological filtration with effective mechanical solids capture and turnover matched to the species’ natural flow needs. Protect intakes, preserve established media during cleaning and keep ammonia and nitrite at zero.
- Aeration
- Maintain continuous surface agitation and dependable dissolved oxygen across the whole aquarium. Increase oxygen reserve in warm water, strong-current systems, dense groups, medication periods and power interruptions.
- Maintenance
- Observe feeding, respiration, body condition and social behaviour daily; test nitrogen waste and key chemistry on a schedule; clean mechanical media before trapped waste decomposes; and perform regular temperature- and chemistry-matched water changes.
- Welfare
- Maintain the stated adult space and social structure, verify feeding, and intervene early when injury, exclusion, weight loss, abnormal respiration or altered behaviour appears. “Pakistani loach” and “Botia lohachata” are unreliable trade labels. Confirm identity, keep a real group and plan for 15 cm adults rather than juveniles.
- Biosecurity
- Never release fish, fry, eggs, aquarium water, sediment, plants or live foods into drains, dams or natural waterways. Confirm current Australian import conditions and South Australian possession, trade and movement rules before acquisition or transfer.
- Review Status
- PASSED
- Source Status
- CURRENT — accepted identity or explicitly bounded species profile; husbandry, welfare, sources and Australian/South Australian biosecurity rechecked. CURRENT
App-ready care, welfare and biosecurity details
Identity Scope
Single-species profile for Botia almorhae. Preserve permanent AquaNexus ID 748, slug yoyo-loach and route /species/yoyo-loach/; retain former combinations, locality labels and trade names only as searchable aliases.
Adult Size And Space
Expected adult size: Up to about 15.5 cm standard length. Minimum permanent housing: At least 300 L with a 120 cm or longer footprint for six or more. Plan around adult dimensions, activity, social structure, aggression, oxygen demand and waste production rather than sale size.
Social Structure
Keep at least six; isolated or undersized groups develop unstable dominance and abnormal behaviour
Swimming Zone
Primary zone: Bottom and lower mid water. Keep that zone usable for movement, feeding, refuge and escape.
Feeding Ecology
Omnivore; quality sinking foods, vegetables and frozen/live invertebrates; will eat snails
Feeding Plan
Small appropriate meals based on age and body condition
Water Stability
Maintain 24–28 °C; pH 6.0–7.8; hardness or minerals: Soft to moderately hard; salinity: Freshwater. Stable oxygenation and nitrogen-cycle control matter more than chasing one exact value.
Habitat Structure
Smooth sand or fine rounded substrate, numerous tight retreats, wood and rock cover, strong oxygenation, moderate current and a secure lid
Compatibility Plan
Robust medium community fish; avoid delicate bottom fish and ornamental snails
Breeding Plan
Home-aquarium breeding is not reliably established; commercial production may use controlled maturation and hormone-assisted spawning Parental care: No dependable aquarium parental-care protocol is established.
Quarantine
Quarantine new livestock in a separate cycled system for at least 30 days. Observe appetite, respiration, waste, skin, fins and behaviour; use dedicated equipment and never add transport water to the established aquarium.
Welfare Checks
Maintain the stated adult space and social structure, verify feeding, and intervene early when injury, exclusion, weight loss, abnormal respiration or altered behaviour appears. “Pakistani loach” and “Botia lohachata” are unreliable trade labels. Confirm identity, keep a real group and plan for 15 cm adults rather than juveniles.
Biosecurity And Release
Never release fish, fry, eggs, aquarium water, sediment, plants or live foods into drains, dams or natural waterways. Confirm current Australian import conditions and South Australian possession, trade and movement rules before acquisition or transfer.
Main Risk
“Pakistani loach” and “Botia lohachata” are unreliable trade labels. Confirm identity, keep a real group and plan for 15 cm adults rather than juveniles.
Adult Projected Load
Plan filtration and stocking for the full adult size (Up to about 15.5 cm standard length), the complete social group and peak feeding waste, not the current shop size. Permanent housing remains At least 300 L with a 120 cm or longer footprint for six or more.
Filtration
Use mature biological filtration with effective mechanical solids capture and turnover matched to the species’ natural flow needs. Protect intakes, preserve established media during cleaning and keep ammonia and nitrite at zero.
Aeration
Maintain continuous surface agitation and dependable dissolved oxygen across the whole aquarium. Increase oxygen reserve in warm water, strong-current systems, dense groups, medication periods and power interruptions.
Maintenance
Observe feeding, respiration, body condition and social behaviour daily; test nitrogen waste and key chemistry on a schedule; clean mechanical media before trapped waste decomposes; and perform regular temperature- and chemistry-matched water changes.
Overridable Warnings
Warnings are decision support, not permission to ignore welfare limits. Override only with specimen-specific evidence, equivalent risk controls and a recorded reason; never override legal, biosecurity, provenance or no-release requirements.
Sources and review basis
- Eschmeyer’s Catalog of Fishes — Botia almorhae: Taxonomy — accepted name, former combinations, synonyms and family placement
- ITIS — Botia almorhae: Taxonomy and identity — verified current species standing
- IUCN Red List — Botia almorhae: Conservation and provenance — current wild-status and collection-risk cross-check
- PIRSA — South Australian noxious fish list: Australian biosecurity — current South Australian possession, trade and movement restrictions
- DAFF — importing live ornamental fish to Australia: Australian biosecurity — national live-fish import pathways and permitted-species warning
AquaNexus uses original editorial synthesis. Exact import, possession, movement and disposal requirements must be rechecked with the current authority before acquisition or transfer.