These are excellent bait -- the Fiddler Crabs -- and are very easy to keep alive. You can use a bucket or a Tupperware-type container. Place about an inch of salt water in the bucket and pile some sand so it is a few inches above the water. You can also place some cardboard in the bucket.
Soak some of the cardboard in saltwater to get it moist. Leave some of the cardboard on the sand mound sticking out of the water. Make sure you keep the container in a shaded area, out of the sun. This will keep the Fiddler Crabs alive for days. Just make sure they have a place to climb out of the standing water and if you can change it once in a while.
Send us a picture of your homemade Fiddler Crab container, and the fish the crabs catch for you!
Good luck out there.
Captain David M. Rieumont
The Online Fisherman Inc.