The Pink Cucumber is also known as a spiny cucumber, which are safe and makes a beautiful addition to any aquarium. It is a yellow and pink sea cucumber, which is small and stout in shape. The Pink Cucumber possesses harmless thorns on its body that is soft and non-stinging, instead it act as a filter feeding mechanism. Generally, the Pink Cucumber extends its feeding tentacles into the water to catch free-floating planktonic foods and pull the same into their mouth. It can be target fed twice a week with various filter feeder foods when these tentacles are extended. The Pink Cucumber also features strong tube feet which are used to attach themselves onto rockwork or the sides of an aquarium. It can be harmed if pulled into the filter intakes or overflows so be careful to cover any openings. Some fishes may also pick at their bodies or feeding tentacles, therefore the Pink Cucumber should be kept carefully with the selected tank mates only. If it is under stress then the Pink Cucumber may expel its internal organs as a stress response. It thrives well in the temperature range of 73-83 degrees Fahrenheit, and since it is suspension feeder, it does well in a nutrient rich environment with the addition of various brand plankton additives. The Pink Cucumber is considered a great ?housekeeper? for the reef aquarium, as it ?eats? sand and removes detritus from it, and expels out the clean and clear sand through its body. It is sufficient to keep the Pink Cucumber singly in a 20 gallon tank. Avoid keeping the Pink Cucumber with aggressive fishes that are not safe with invertebrates. Generally, the drip-acclimation method is recommended to minimize exposure to fluctuating water parameters. The Pink Cucumber cannot tolerate high nitrate levels or copper-based medications and, therefore addition of the same should be avoided.