Best Pond Netting & Predator Protection for Koi Ponds (2026 Guide) Affiliate Disclosure: Giobel Koi Center is a participant in the Amazon Services LLC Associates Program. As an Amazon Associate, we earn from qualifying purchases at no extra cost to you. Quick Answer The most effective way to protect koi from herons, raccoons, and cats […]
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Quick Answer Trichodina and Costia are both protozoan parasites too small to see with the naked eye, and both are confirmed the same way — a skin or gill scrape examined under a microscope. Trichodina is round, spins like a flying saucer, and is visible at 100x magnification; Costia is far smaller, comma-shaped, and needs
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Quick Answer Koi ich (white spot disease) is caused by Ichthyophthirius multifiliis, a protozoan parasite that shows up as tiny white spots — like grains of salt — scattered across the body, fins, and gills. Unlike anchor worm or fish lice, these spots don’t move and aren’t attached structures; they’re the parasite itself embedded in
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