Shrimp, Crayfish, & Crabs


General Information Freshwater Shrimps, Crayfish (“Lobsters”), and Crabs, also referred to as crustaceans, have gained popularity among aquarists in recent years and more species are now available to the hobby than ever before. They are an interesting addition to aquariums that typically only contain fish. Although some Crabs prefer a small area of exposed driftwood, rock, or other substrate to periodically climb on, they are all bottom-dwelling species. All are either predators or opportunistic scavengers and most are omnivores. Crustaceans are covered with a hard shell (exoskeleton) that they shed as they grow larger. It is typical for inexperienced aquarists to see this discarded exoskeleton on the bottom of the tank and suspect that their Shrimp or Crab has died!
Aquarium Care & Feeding Freshwater crustaceans will typically eat any variety of food that falls to the bottom of the aquarium, including flakes, pellets, and frozen foods. The aquarist should provide rocks, plants, and/or other decor that provide hiding spaces for these species. It is not advised to keep small fishes with clawed Crabs or Crayfish, as they might become a quick meal. Be sure to check our our specially-formulated sinking Shrimp Wafers for freshwater Shrimps!
We recommend the following Ocean Nutrition™ products for Shrimps, Crayfish, Crabs: