BTW for those who wish to have a fish/water type pokemon and not run into the issue of constantly needing water/a large source of water for them we can hand wave it as them being able to breathe in the water particles in the air/and will only need large amounts of water to swim in after a prolonged time/they get weak and dry when not in water and will 100% need water to live and rest in. As for how they move they can either float/flop/hop/whatever on the ground depending on their body type.
Happy Thanksgiving to those that are celebrating, and please be kind to retail employees on black firday.