Risk Sources
Wild-collected daphnia, bloodworms, and tubifex can carry: gill flukes, fish TB, internal parasites, viral infections.
Pond-collected mosquito larvae and water fleas are highest risk.
Safe Sources
Frozen versions of all live foods — irradiation kills most parasites.
Cultured live foods (home-bred brine shrimp, daphnia, vinegar eels) are safer than wild-collected.
Reputable suppliers — buy from established LFS or specialized live food breeders.
- ✦Rinse live food in dechlorinated water before feeding
- ✦Quarantine cultures from new sources for 2 weeks before adding to main feed rotation
- ✦Stop feeding wild-caught foods if any disease appears
Best Live Foods
Brine shrimp (Artemia): clean, easy to culture, all life stages from BBS to adults.
Vinegar eels: tiny, perfect for fry food, breed in vinegar+sugar+apple culture.
Microworms: grown on oats, perfect first food for fry.
When to Skip Live Foods
New tanks: stick to dry/frozen foods until tank is established 6+ months.
Sick tanks: live foods can introduce pathogens to weakened fish.
Sensitive species: discus, apisto, and rare fish — rely on cultured or frozen only.