Hi! I got one 4.5 oz jar of Omega One Shrimp Pellets and I am wondering what other foods my future-resident fiddler crabs will enjoy. I like foods that are healthy and not filled with a bunch of chemicals and fillers. I have some fish food (bug bites and veggie pellets) and flakes already for my other two tanks as well as some frozen blood worms. I heard they enjoy the occasional fruits and vegetables. What types can they eat? How do you keep the tank clean when you feed them fruits and vegetables?