I always rinse them. Don't need that dirt crap (literally) in my tank. Plus, I have noticed any time I put a worm in the tank, it squirts out poo, so I take the liberty of doing this form them under a stream of running water ... Before cutting/feeding... it's quite gross.
Just wait till the n crawler streches itself out. Then cut with the scissors wait then cut again. It's that simple,lol.
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