I live Toronto, and our tap water is fresh water, not salty. I talk for each LB of bivalvia like clams mussels.

  1. How much tap water?

  2. How much salt to add?

  3. What g of salt per LB NEVER to outstrip? What concentration kills them?

For pics, pls see After purge mussels 6 time in salt water 20 mins each, why they still exude much grime?

  • 1
    To ensure you never kill them, you would need to replicate the water they lived in before they were caught. Ocean salinity varies depending on location. – AMtwo Feb 24 at 7:06

If you want to simulate seawater, you need 35g per 965g (more or less 1 liter) of fresh water.

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