What swollen eyes can mean in bettas and why water quality and injury checks matter.
Popeye means one or both eyes look swollen or protruding. It can be linked to injury, infection, poor water quality, or internal illness, so water tests and careful observation are important.
One swollen eye may suggest injury, while both eyes can point more toward a systemic problem. Either case deserves attention.
Sharp decor, rough handling, aggressive tank mates, and poor water quality can all contribute to eye problems.
If swelling worsens, the fish stops eating, or other symptoms appear, consult a qualified fish health professional.
Health
Betta fish not eating guide covering new bettas, temperature, ammonia, nitrite, stress, food size, overfeeding, bottom-sitting, bloating, and urgent symptoms.
Health
A practical guide to betta fin rot signs, torn fins vs rot, water quality checks, progression tracking, and when fin damage is urgent.
Health
A betta fish laying on the bottom may be resting or stressed. Compare normal sleep with heavy breathing, not eating, cold water, ammonia, nitrite, bloating, and urgent signs.
Health
A careful guide to white spots on bettas, including ich-like dots, fuzzy patches, injury, water checks, spreading symptoms, and urgent warning signs.
Health
A practical guide to betta bloating, including overfeeding, constipation, egg-bound females, swim bladder trouble, dropsy warning signs, and water checks.
Health
Betta fish clamped fins can mean stress, cold water, ammonia, nitrite, strong flow, tank mate pressure, or illness. Learn what to check first and when it is urgent.
