Table of Contents
1. Care & Treatment of Dropsy
2. Care & Treatment of Fin Rot
3. Care & Treatment of Velvet
Below is a list of common Betta fish diseases and their symptoms. It’s important to note that all of these diseases are caused primarily by inadequate tank conditions.
| Name | Frequency | Symptoms |
| Constipation | Common | Bloated stomach, won’t eat, lack of defecation (due to overfeeding) |
| Dropsy | Rare | Bloated body and eyes, protruding scales |
| Fungus | Common | Fluffy, white, cotton-like growths on body and/or fins. |
| Fish Lice | Infrequent | Round parasites attached to skin, ulcers |
| Fin Rot | Common | Torn, ragged fins and/or disintegrating fins |
| Gill Parasites | Infrequent | Scratching itself on aquarium objects Strange swimming patterns Breathing problems Glazed eyes |
| Ich | Common | Small white spots on body and/or fins that resemble grains of salt |
| Mouth Fungus | Infrequent | Patchy skin or cotton-like growths on mouth |
| Parasites (intestinal) | Infrequent | Worms are visible through skin, emaciation |
| Pop Eye | Infrequent | Protruding eye(s) with possible white haze |
| Swim Bladder Disease | Infrequent | Abnormal swimming patterns, possible loss of balance |
| Septicimia | Infrequent | Lethargic, refuses to eat, red (blood) streaks on fin and body due to possible hemorrhage |
| Slime Disease | Very Common | Grayish slime on body and/or fins which can be frayed Scratching on aquarium objects |
| Tuberculosis | Rare | Dull body color Pop eye (sometimes) Weight loss Constricted Fins Transferable to humans |
| Velvet | Very Common | Gold or grayish color on body or fins, can look like it was sprinkled with gold dust |
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