Find Medaka conditions by symptom
Pick a symptom you've noticed and review the related conditions.
Loss of appetite
- Pinecone Disease (Dropsy)Consult a specialist store or experienced keeper promptly
- Velvet Disease (Oodinium)Consult a specialist store or experienced keeper promptly
- Water Mold Disease (Saprolegniasis)Consider consulting a specialist store within a few days
Abdominal pressure may cause impaired swimming balance
- Egg Binding (Retained Eggs)Consider consulting a specialist store within a few days
Abdominal swelling
- Pinecone Disease (Dropsy)Consult a specialist store or experienced keeper promptly
Asymmetric gill movement or one gill staying permanently open
- Gill Disease (Gill Inflammation / Branchial Disorder)Consider consulting a specialist store within a few days
Bent spine
- Wasting DiseaseConsult a specialist store or experienced keeper promptly
Clamped fins
- IchConsider consulting a specialist store within a few days
Clamped fins and listlessness
- Velvet Disease (Oodinium)Consult a specialist store or experienced keeper promptly
Female approaches spawning substrate but fails to deposit eggs over multiple days
- Egg Binding (Retained Eggs)Consider consulting a specialist store within a few days
Fin edges becoming white
- Fin RotConsider consulting a specialist store within a few days
Fin splitting and tearing
- Fin RotConsider consulting a specialist store within a few days
Fine gold or brownish dust-like spots on the body surface
- Velvet Disease (Oodinium)Consult a specialist store or experienced keeper promptly
Floating upside down
- Swim Bladder DisorderMonitor; consult a specialist store if it worsens
Gasping at the water surface (oxygen-deprived-like breathing)
- Gill Disease (Gill Inflammation / Branchial Disorder)Consider consulting a specialist store within a few days
Gills appearing abnormally red or pale
- Gill Disease (Gill Inflammation / Branchial Disorder)Consider consulting a specialist store within a few days
Lesions may progress to ulceration or tissue erosion
- Red Spot Disease (Aeromonas skin infection)Consider consulting a specialist store within a few days
Loss of appetite despite emaciation
- Wasting DiseaseConsult a specialist store or experienced keeper promptly
Noticeably swollen abdomen, sometimes asymmetrical
- Egg Binding (Retained Eggs)Consider consulting a specialist store within a few days
Rapid or labored breathing, gasping at the water surface
- Velvet Disease (Oodinium)Consult a specialist store or experienced keeper promptly
Rapid weight loss
- Wasting DiseaseConsult a specialist store or experienced keeper promptly
Reddish spots or patches visible on the body surface
- Red Spot Disease (Aeromonas skin infection)Consider consulting a specialist store within a few days
Redness or erosion at the affected site
- Water Mold Disease (Saprolegniasis)Consider consulting a specialist store within a few days
Reduced appetite; fish remains stationary near the surface or bottom
- Egg Binding (Retained Eggs)Consider consulting a specialist store within a few days
Reduced appetite; fish tends to rest near the bottom
- Red Spot Disease (Aeromonas skin infection)Consider consulting a specialist store within a few days
Rubbing against objects
- IchConsider consulting a specialist store within a few days
Rubbing against substrate or tank walls
- Velvet Disease (Oodinium)Consult a specialist store or experienced keeper promptly
Scales may lift or fall off around affected areas
- Red Spot Disease (Aeromonas skin infection)Consider consulting a specialist store within a few days
Scales standing erect (pinecone-like appearance)
- Pinecone Disease (Dropsy)Consult a specialist store or experienced keeper promptly
Separating from the group
- Wasting DiseaseConsult a specialist store or experienced keeper promptly
Sinking and unable to move
- Swim Bladder DisorderMonitor; consult a specialist store if it worsens
Sluggish movement
- Pinecone Disease (Dropsy)Consult a specialist store or experienced keeper promptly
Sluggish movement and separation from the group
- Gill Disease (Gill Inflammation / Branchial Disorder)Consider consulting a specialist store within a few days
Sluggish movement or resting motionless at the bottom
- Water Mold Disease (Saprolegniasis)Consider consulting a specialist store within a few days
Staying motionless at the bottom
- IchConsider consulting a specialist store within a few days
Tail fin dissolving and turning white
- Fin RotConsider consulting a specialist store within a few days
Tilting sideways
- Swim Bladder DisorderMonitor; consult a specialist store if it worsens
Unable to swim normally
- Swim Bladder DisorderMonitor; consult a specialist store if it worsens
White spots on the body surface
- IchConsider consulting a specialist store within a few days
White to gray cotton-like growth on the body, fins, or around the mouth
- Water Mold Disease (Saprolegniasis)Consider consulting a specialist store within a few days