Freshwater ich
Watch for: Small white spots, flashing against objects, clamped fins or faster breathing.
First response: Confirm the signs, test water and use a treatment known to be safe for every species in the system.
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Squalius ghigii
Rhodes Minnow
freshwater
Bioload 0.2
Intermediate care
Leuciscidae
Your complete care profile
Rhodes Minnow (Squalius ghigii) is a freshwater fish associated with Europe, with a recorded adult length of up to 6.5 cm. This source-backed catalogue profile brings its essential aquarium planning information together on one page.
Temperature
23–27°C
pH range
7–7.5
Minimum tank
60 litres
Typical lifespan
3 years
Diet
Omnivore
Origin
Europe
Adult size
Up to 6.5 cm
Care level
Intermediate
Care level recorded in the source-backed catalogue profile.
Aquarium context
freshwater system
Rarely kept; specialist or institutional care may be required
Planning to add Rhodes Minnow?
Check it against your aquarium before purchase, then use the complete preparation checklist below.
Check compatibilitySpecies identity
Know the fish
Common name
Rhodes Minnow
Scientific name
Squalius ghigii
Family
Leuciscidae
Family group
Minnows
Water type
freshwater
Native range
Europe
Social planning
Individual assessment
Conservation
Not evaluated in the source snapshot (Not evaluated in source snapshot)
Aquarium setup
Build the right system
A fully cycled freshwater aquarium using conditioned water, stable temperature and no detectable ammonia or nitrite.
Use 60 litres as the minimum planning baseline before allowing extra space for a group, tank mates, decor and swimming behaviour.
Hold temperature at 23–27°C and pH at 7–7.5; stability matters more than chasing a single number.
Design the aquarium around the recorded adult length of 6.5 cm, not the juvenile size seen at purchase.
Provide retreat areas and visual breaks while preserving enough unobstructed space for normal movement and feeding.
Filtration & waste
Lower individual waste load (0.2 index), but group size and total stocking still determine the filter capacity required.
Feeding
Omnivore diet
Use a varied omnivore staple with complementary plant and animal ingredients. Feed controlled portions and adjust to body condition and waste production.
Observe
Confirm every fish reaches food and swallows it.
Control
Stop before leftovers can decay in the aquarium.
Review
Track body condition, waste and feeding response over time.
Behaviour & tank mates
Community planning
Treat temperament as an individual assessment. Observe feeding and territorial behaviour, and keep a safe separation plan available.
No simple community match is approved in this profile. Plan species-only housing or obtain a specialist compatibility assessment before adding tank mates.
No pre-approved tank mate is listed. That is a safety signal, not a claim that every pairing will fail.
Health watch
Recognise warning signs early
These are risks to monitor, not diagnoses. Test the aquarium first and seek an aquatic vet or experienced specialist for severe, fast-moving or uncertain symptoms.
Environmental stress
Watch for: Hiding, faded colour, clamped fins, glass surfing, rapid breathing or appetite loss.
First response: Test water, review temperature and tank mates, reduce disturbance and correct problems gradually.
Before bringing one home
Five-point readiness check
The established aquarium is at least 60 litres and matches the required freshwater system.
Temperature and pH overlap the full 23–27°C and 7–7.5 ranges.
A suitable omnivore food is available and the seller can demonstrate that the fish is feeding.
Ammonia and nitrite test at zero, acclimation is planned and a quarantine or observation option is ready.
Every proposed tank mate has been screened for adult size, behaviour, feeding competition and water compatibility.
Data & source notes
Transparent, in-app data
IUCN Not evaluated in source snapshot
Catalogue source
FishBase · release 26.07
Species record
FishBase SpecCode 9808
Aquarium context
Rarely kept; specialist or institutional care may be required
Temperature basis
FishSnap tropical-freshwater planning baseline
pH basis
FishBase stock pH range
Tank basis
FishSnap conservative planning baseline derived from adult size, water type, social ecology and family
Lifespan basis
FishBase wild longevity record
Photo credit
Eleftherios Katsillis · CC BY
FishBase remains an editorial reference, but the useful species and care information is interpreted here so you do not have to leave FishSnap. Conservative planning baselines are labelled as guidance, not guarantees.