What is the difference between black and tubifex worms?

Black worm and tubifex worms
#1
Posted 15 July 2017 - 09:59 PM
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#2
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.
Gerald Pottern
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Hangin' on the Neuse
"Taxonomy is the diaper used to organize the mess of evolution into discrete packages" - M.Sandel
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