Red Claw Crab
Red claw crabs can survive in freshwater, however, in order to thrive and reproduce these crabs will require brackish water (1-2 tbsp. of Marine Salt added per gallon of freshwater). These are tropical crabs and prefer the water temperature between 75-80 °F (23.9-26.7 °C). The pH should be stable at around 7.5 – 8.5. Male Red Claw Crabs tend to have larger, redder claws and are more brightly colored, whereas the females have smaller, darker claws. Males have a narrower flap on the underside, females have a wider flap. Non-aggressive, mid to top dwelling and fast-swimming fish, such as most tetras, guppies, and mollies could make suitable tank mates. Due to their opportunistic behavior, Red Claw Crabs tend to try to attack and eat slow-moving, sick, or bottom-dwelling fish. It is vital to make sure tank mates can tolerate similar environmental conditions.