What is the difference between black and tubifex worms?
Black worm and tubifex worms
Posted 15 July 2017 - 09:59 PM
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Posted 16 July 2017 - 10:55 AM
They're two different families of Oligochates: Lumbriculidae vs. Tubificidae. Both are good as fish food, similar nutritional value, but because Tuibifex are more pollution-tolerant they're more likely to be harvested from sources with high levels of toxic metals, pesticides, bacteria, etc. If you have a "safe" source then Tubifex are fine.
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