Ectoparasites in Goldfish
Fish · Carassius auratus · typical adult weight 0.01–3.00 kg
2 cited drugs treat Ectoparasites in goldfish: Fenbendazole, Sodium chloride.
External parasites including fleas, ticks, mites, and lice. Isoxazolines, macrocyclic lactones, and pyrethroids each carry species-specific cautions (e.g. permethrin lethal in cats).
The overview above describes Ectoparasites across species; the citations below are the ExoticRx dose rules scoped to goldfish — a reference list, not new species-specific clinical guidance.
Fenbendazole(Panacur)
Antiparasitic| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| PO (medicated feed) | 20 mg/kg/day | once daily for 3 consecutive days | Monogenean ectoparasites (Gyrodactylus) | Moderate | Dong J, Li J, Liu Y, Yang Q, Xu N, Ai X, Zhou S. Preclinical Evaluation of Fenbendazole for Controlling Gyrodactylus kobayashii (Monogenea, Gyrodactylidae) in Goldfish: Dose Optimization and Safety Assessment. Animals (Basel). 2025;15(12):1811. doi:10.3390/ani15121811 https://pmc.ncbi.nlm.nih.gov/articles/PMC12189257/ |
Sodium chloride(Aqupharm, Hypertonic saline, Sodium chloride, Vetivex)
Emergency| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| bath | 30 g/l | weekly or as needed | Ectoparasite control | Moderate | Ramsey I, ed. BSAVA Small Animal Formulary, 10th ed. Part B: Exotic Pets. Gloucester: British Small Animal Veterinary Association; 2023. p.272.Compilation only — we have not located an independent source that prints this figure. |
Other conditions in Goldfish
Sourced from published veterinary references; awaiting credentialed clinical reviewer. See our editorial process. Reference only — not veterinary advice. Verify against current literature before clinical use.