Gerald BassleerGerald BassleerFishpathobiologist, Bassleer Biofish · Fish doctor that gives fish health service for the ornamental fish industry & hobby = Holistic Fishpathobiologist.

fishnutritionandfishhealthofi journal 84 gerald

PDF · 25 Dec 2025

Article by Dr. Gerald Bassleer (Director, Bassleer Biofish) on nutrition and health of ornamental fish (OFI Journal 84, May 2017). Draws on 40+ years’ practical and pathobiology experience to argue for "functional" fish foods — diets formulated not only for nutrition but to support immunity, faster recovery and reduced medication use. Recommends fresh wild Scandinavian fish as primary raw material, use of probiotics/prebiotics (e.g., Pediococcus acidilactici, beta-glucan from Saccharomyces extracts) and a range of phytotherapeutic additives (with suggested inclusion percentages) for prevention and recovery from bacterial, viral, fungal and parasitic issues.

Questions this document answers

Dr. Gerald Bassleer, Director, Bassleer Biofish (author of the article).

OFI Journal 84, May 2017.

Fresh wild Scandinavian fish (herring, mackerel, anchovy).

5% (for all fish, including livebearers; also used in fine food for fry).

2% (improved palatability and antimicrobial/anti-parasitic aid).

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