1 Live Crystal Black Shrimp (A-S Grade, Easy to Keep!) at 1/8 to 1/2 Inch Long by Aquatic Arts Beautiful black and white coloration makes this one of the most popular and sought after shrimp in the world! Needs water with 7.2 ph or lower, and they do not do well in hard water. Dwarf shrimp are very small and are not ideal for aquariums with medium to large-sized fish. Please research dwarf shrimp before purchasing to ensure compatibility with your tank's inhabitants. The colony of shrimp work as a very effective cleaning crew for your tanks, cleaning up algae and waste! All Aquatic Arts (formerly InvertObsession) brand plants and animals come with a 100% live arrival guarantee, plus free email support directly from the owners!