Heron-Speared Koi: Emergency Wound Care

Koi speared in chest by heron. In quarantine tub with air stone, salt. Hydrogen peroxide + Mercurochrome advised. Lung puncture? Treatment frequency?

If swimming, gills moving, no massive bleeding → likely **muscle/skin wound**, not organ puncture.
Fish survive remarkable trauma (even missing operculum).

Quarantine: Clean, aerated, heated (70–75°F), 0.3–0.5% salt.
Topical: Swab wound **once** with 3% H₂O₂ (dilute 1:10 for sensitive tissue), then apply Mercurochrome (merbromin) or iodine-based antiseptic (Betadine). **Repeat only if re-infected.**
Water Quality: Ammonia = 0 (frequent changes, seeded biofilter). Critical for healing.
Antibiotic Food: Medicated pellets (oxytetracycline) for 10 days if wound looks deep.

Pond and Water Gardening: Winterizing a Koi Pond in North Carolina; Koi Behavior in Cold Water: Surface Hovering; Black Water in a Koi Pond: Test pH and Nitrite First; New Koi Die After Pond Clean: Chlorine, Cycling, or Bad Luck?; Heron-Stabbed Koi: Emergency Wound Care Protocol; Foam Around Pond Edges After Algaecide: Overdose or Surfactant?; New Pond Owner Loses Koi: Common Mistakes and How to Avoid Them; Koi with Large Body Holes: Disease, Toxins, or Cement Pond Issues?; Koi Stress in Small Tank: Water Quality and Space; Lethargic Koi in 1,500-gal Pond: Water Quality and Parasite Check

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