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Lionfish
Pterois volitans
A dramatic marine fish with venomous spines and flowing red-and-white striped fins. Popular for its stunning appearance but venomous spines require careful handling.
Care Parameters
Adult size
30 cm
Min tank
300 L
Temperature
24–28°C
pH
8.1–8.4
GH
8–12 dGH
Diet
Carnivore
Temperament
Semi-aggressive
Water zone
All levels
Difficulty
Intermediate
Schooling
Solitary.
Suitable Equipment
5
Common Problems
5C
Cloudy Water
Milky or hazy water that never fully clears.
waterL
Low Filter Flow
The filter output weakens, reducing circulation and filtration.
equipmentF
Filter Crash
The biological filter fails after aggressive cleaning, media replacement or a long outage.
equipmentT
Temperature Shock
Sudden temperature swings after water changes, heater failure or power cuts stress fish.
fishH
High Ammonia Poisoning
Elevated ammonia levels cause burns, redness and rapid breathing.
water