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Philippine Sea Apple - Pseudocolochirus violaceus

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Item: 206750

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Two species of "Sea Apple" are often found in the aquarium trade: the Philippine Sea Apple (Pseudocolochirus violaceus) and the Australian Sea Apple (P. axiologus). Both have pink-purple bodies and multicolored feeding tentacles and are often confused. Some sources even list these large cucumbers as regional variations of the same species.

The distinguishing trait between these two is the tubed feed used to attach the sea apple to a surface. The Philippine Sea Apple (P. violaceus) has yellow tubed feet while the Australian Sea Apple (P. axiologus)'s tubed feet are red. The Australian Sea Apple also tends to be more blue in color and the Philippine more purple but this color can vary.

While some sea cucumbers are "sand-sifters" or "sand-moppers", most are filter feeders. In the aquarium trade, these are typically from the genuses Pentacta, Colochirus, and Pseudocolochirus, among others. They extend frilly feeding tentacles into the water to catch free-floating planktonic foods and pull these food items into their mouth to feed. The cucumber can be target-fed with various filter-feeder foods at least 2-3 times a week when these tentacles are extended. Most also have very strong tubed feet that they use to attach themselves onto rockwork or the sides of an aquarium. If the cucumber is moved, these tubed feet may be left behind but will grow back with time.

Sea cucumbers can be harmed if they are trapped or pulled into filter intakes or overflows. Some fish may also pick at their bodies or feeding tentacles so tanks and tankmates should be chosen with care. If a cucumber is stressed, they may expel their internal organs as a stress response. As long as the cucumber is healthy otherwise and the cause of the stress is removed, these organs can grow back and the cucumber can survive. Most cucumbers also produce "holothurin toxins". These toxins can range from a mild irritant to deadly to aquarium residents. Always choose cucumbers and tankmates with care and monitor any stress to the cucumber.

F93 0045 0152
That Fish Place
Common NamePhilippine Sea Apple
Scientific NamePseudocolochirus violaceus
Reef SafeYes
Invert SafeYes
Community SafeYes, with caution
Max Size (in inches)6
Min Tank Size (in gallons)55
Specific Gravity Range1.022-1.026
pH Range8.0-8.4
Temperature Range75-82
ToxicYes, if stressed
Internal Id

State Restrictions
Armed Forces Americas
Armed Forces Europe
Armed Forces Pacific
Puerto Rico

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