<< The biggest worms really are
aquatic "earthworms," smaller versions of worms in the family Lumbricidae.
There are slightly smaller versions in another family called Lumbriculidae.
>>
Very interesting.
<< The smaller, skinny ones are Tubificidae >>
Are black worms tubficids? The pet store owner told me they wern't but I
don't know if I agree with this answer. I guess I could see them being in a
different family that was closely related. Thanks for all the info btw, it's
certainly helped clear all of these questions up.
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