Hello! I recently made Fish Leather. I used Jackfish (northern pike) skin and over a week watched and supported its change from raw skin to leather. I used a Tea Solution and hand softened it after it was fully tanned. It is a way to help transform a part of the fish, that some people may not use, into a useful and beautiful piece of leather. The leather can be used in a variety of ways; clothing, bowls, wallets, book covers, and so much more!