Oh, fiddler crabs are such fascinating little creatures! From what I’ve gathered in 'Fiddler Crabs & Fiddler Crab Care The Complete Pet Guide,' these tiny scavengers aren’t picky eaters at all. They thrive on a mix of algae, decaying plant matter, and even tiny bits of meat like brine shrimp or bloodworms. Their diet in captivity should mimic their natural habitat—think of them as the cleanup crew of the brackish water world. I’ve seen mine go nuts for blanched spinach or zucchini slices too, which adds variety to their meals.
What’s really cool is how they use their smaller claw to scoop food into their mouths while the big one waves around like it’s directing traffic. The guide emphasizes balancing their diet with calcium-rich foods to keep their exoskeletons strong, so I occasionally crush eggshells into powder and sprinkle it over their food. Watching them sift through sand for leftovers is weirdly hypnotic—like miniature underwater archaeologists on a mission.