Longhorn Cowfish

Longhorn Cowfish

Lactoria cornuta

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Care Facts

Care Level: Expert
Temperament: Peaceful
Diet: Omnivore
Reef Safe: No
Minimum Tank Size: 180 gallons
Max Size: 20 inches
The Long Horned Cowfish,  Lactoria cornuta, is also known as the Longhorn Cowfish, Yellow Boxfish, or Polka Dot Cowfish. This fish is a variety of Boxfish with characteristic "horns" protruding from its head resembling a bull or cow. Though in its juvenile stage, the "horns" are yet not developed. The lovable Long Horned Cowfish is native to the Indo-Pacific Oceans and is a yellow/tan color with blue and white speckles. This reef fish grow up to 20 inches in the wild, while aquarium specimens may reach up to ten inches. 
They should be kept in a tank of at least 100 gallons with a sandy substrate and plenty of live rock and natural algae.  The Long Horned Cowfish is a fickle animal and should be kept by experienced aquarists. Similar to other Boxfish species, will exude a toxic poison through their skin if threatened, potentially deadly to other tank inhabitants. It is best not to be housed with other  Cowfish or Boxfish species, as it will become territorial and may become aggressive. It is generally temperate with corals and invertebrates but may be caught nibbling on tubeworms. They are slow swimmers and should be given a low water flow. They also should not be housed with aggressive eaters as they are also slow eaters, and may not be able to compete for food. They should be fed an omnivorous diet, consisting of meaty foods including raw shrimp, bloodworms, chopped clams, mussels, snails, tunicates, and fish. They are not picky eaters and will quickly become adapted to a variety of prepared aquarium foods and an occasional algae wafer and herbivore preparations. The Long Horned Cowfish is often a favorite in the tank because of its endearing and unique appearance. They will thrive in a temperature range of 72-78?? F and a pH of 8.1-8.4.  

Fish showed up healthy and great. Sadly it passed away a week later but I honestly attribute that to the fact they're very sensitive fish. a lot of people have problems keeping them. I checked my water parameters and everything seemed fine, not 100% sure what happened but I don't blame SWF at all. When he got here he was healthy, active and eating. I might try again in the future and would def repurchase.

Reviewed by: Marissa L on June 11, 2017

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