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Yellow Boxfish

Yellow Boxfish

Latin Name Ostracion cubicus
Common Name Yellow Boxfish
Also known as Cube Boxfish
Fast Facts PLEASE NOTE: This is a restricted species and is not covered by our live arrival guarantee

This boxfish exhibits considerable color change through its life. As a juvenile, it looks like a bright yellow dice. As it grows, the color becomes brown overall, retaining its dark spots. Like its cousins, it is best housed with non-aggressive tankmates. If housed with aggressive feeders, it may have trouble competing for food. It is possible to keep more than one in the same tank (especially young individuals), but adult males may quarrel. It will not usually bother other fishes. It is a larger boxfish that will need lots of open swimming space. This species has been known to "nuke" an entire tank of fishes. This occurs most often when the fish is stressed. Make sure you do not keep it with fishes that will pick on it and remove it immediately if it is being harassed or looks as though it may die. (They sometimes release lethal amounts of their body slime when they die.) This species is susceptible to Cryptocaryon and Lymphocystis. It is best not to house it with cleaner wrasses, as these wrasses will incessantly chase and try to clean them. The species is notably difficult to keep and not covered by our live arrival guarantee. This item should only be attempted by experienced hobbyists.

Sizes Small/Specimens are around .5" - 1"
Medium/Specimens are around .75" - 1.5"
Range in Nature Indo-Pacific
Minimum Aquarium Size 30
Diet and Feeding Carnivore, provide a varied diet that includes frozen preparations for carnivores.
Ease of Care(5=easy, 1=difficult) Suitability ratingSuitability ratingSuitability rating
Reef Aquarium Compatibility While it can be kept with large, stinging sea anemones, it is not well-suited to the reef aquarium as it is likely to eat many t
Related Fish Whitley's Boxfish, More Boxfishes 
Availability Small/Semi Regularly Available
Medium/Semi Regularly Available
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Yellow Boxfish

Size Price Qty. Add
Small $24.99
Medium $27.99

Availability is not guaranteed and is subject to change without notice.  Note: Because these are living animals, and not made in a factory, actual specimens will vary and will not look identical to the image provided.  Sizes stated are approximate.

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