copula - an equating verb (such as `be' or `become') that links the subject with the complement of a sentence. copulative, linking verb. verb - a content word that denotes an action, occurrence, or state of existence.
Different species of crabs eat different foods. Depending on the species, they may eat plankton, worms, shrimps, prawns and other shellfish, and they scavenge for animal and/or plant remains. 1  They are detrivores. 2  They will consume animal as well as plant matter (algae, etc.).
Smaller crabs can get by on a diet of algae, plants and uneaten fish food, while larger hermies need crab pellets, lettuce, dried seaweed, poultry pieces or other food. To ensure each of your crabs gets enough to eat, offer each one a piece of food with tweezers or tongs. Step 6. Provide your hermit crabs a variety of shells so they can switch when desired. Some crabs will use the same shell until they outgrow it; others like to change shells daily.