Evaluation of Sodium Chloride and Hydrogen Peroxide as Sustainable Therapeutic Agents for Controlling Saprolegniasis in Ornamental Aquarium Fish in Algeria

Mebarki, Mounir; Besbaci, Mohamed

doi:10.32598/ARI.81.4.3955

Evaluation of Sodium Chloride and Hydrogen Peroxide as Sustainable Therapeutic Agents for Controlling Saprolegniasis in Ornamental Aquarium Fish in Algeria

Document Type : Original Articles

Authors

Mounir Mebarki ¹
Mohamed Besbaci ²

¹ Department of Veterinary Science, Veterinary Sciences and Agricultural Sciences Institute, University of Batna 1, Batna, Algeria.

² Laboratory of Biotechnology in Animal Reproduction, Institute of Veterinary Sciences, University of Blida 1, Blida, Algeria.

10.32598/ARI.81.4.3955

Abstract

Introduction: Saprolegniasis, caused by oomycete pathogens such as Saprolegnia, poses a major challenge to the global ornamental fish industry, resulting in economic losses and raising animal welfare concerns. Restrictions on traditional chemical treatments have prompted the search for safe, effective, and eco-friendly alternatives. This study aimed to assess and compare the effectiveness of two biodegradable substances, sodium chloride (NaCl) and hydrogen peroxide (H₂O₂), in controlling natural saprolegniasis infections in ornamental aquarium fish.
Materials & Methods: NaCl showed a concentration-dependent effect, with 4 and 6 g/L reducing lesion severity and mortality, but higher concentrations (8 g/L) were toxic. H₂O₂ at 2 mL/L provided the best results, significantly improving lesion regression and survival without causing adverse effects.
Results: NaCl showed a concentration-dependent effect, with 4 and 6 g/L reducing lesion severity and mortality, but higher concentrations (8 g/L) were toxic. H₂O₂ at 2 mL/L provided the best results, significantly improving lesion regression and survival without causing adverse effects.
Conclusion: Using 2 mL/L of H₂O₂ during 30-minute daily baths provides a sustainable and effective way to treat saprolegniasis in ornamental fish, offering aquarists an environmentally friendly alternative.

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