
A good diet for the Longhorn Cowfish should contain:
- Dried brine or mysis shrimp
- Live gut loaded brine shrimp
- Chopped table shrimp
- Frozen foods
- Chopped Squid
- Clam
- Mussels
- Sponge based foods or sponge
- Seaweed
- Algae
What does a Longhorn cowfish eat?
Longhorn cowfish. They are omnivorous, feeding upon benthic algae, various microorganisms, and foraminiferans that it strains from sediments, sponges, polychaete worms from sand flats, mollusks, small crustaceans, and small fish, able to feed on benthic invertebrates by blowing jets of water into the sandy substrate.
What size aquarium for a Longhorn cowfish?
Longhorn cowfish should be housed in a 150-gallon aquarium, provided with plenty of live rock and live sand for shelter and food. They love to eat and this fact along with the large size they reach in adulthood, can add a considerable biological load to your aquarium.
Should I Save my Longhorn cowfish?
I personally would not try to save the aquarium and would buy an entirely new tank rather than risk keeping some toxins or having cleaning solution stay in the aquarium. Wild Longhorn Cowfish will often reach the full 20 inch size. In the aquarium they usually stay under 16 inches even when fed the best diets possible.
What kind of shrimp can I put with my Longhorn cowfish?
Cleaners, coral banded and peppermint shrimp all do well in the early years with the Longhorn Cowfish. Worms will not be safe with the Longhorn Cowfish even if they burrow under the sand. The cowfish shoots jets of water from its mouth to find hiding worms and is an expert worm hunter.

What do you feed cowfish?
Since they are omnivores, the Longhorn Cowfish should be offered a variety of meaty and vegetable foods. They are slow eaters, and should not be housed with aggressive eaters. Caution: This species secretes or releases toxins when stressed or injured that may kill fish in the aquarium.
How do you look after a cowfish?
Boxfish and cowfish careDaily: Check filter, water temperature and other equipment.Weekly: Test water quality at least once a week.Weekly to monthly: Change 10 to 25% of the total volume of water every two to four weeks or as needed; change filter media monthly.
Do longhorn cowfish eat coral?
Cowfish have trouble navigating high flow. They may nip some corals.
What do you need for a cowfish?
5:4916:51HOW TO CARE FOR A COWFISH (Featuring Our God: Cheese)YouTubeStart of suggested clipEnd of suggested clipSo when they're that big they obviously need a very big tank pretty much all Aquarius to agree thatMoreSo when they're that big they obviously need a very big tank pretty much all Aquarius to agree that 250 gallons is a good size.
How long do longhorn cowfish live?
Generally pet cowfish can live anywhere from 2-8 years and can grow up to 16-20 inches in size.
How fast do cowfish grow?
they started off as a tiny <1 inch baby and grew to about 5 to 7 inches (from vague memory of about 10 years ago) over 1-2 years, the box fish only grew to about 2 inches, but most of the growth was in the beginning, and was slowing down by the end.
How big of a tank do you need for cowfish?
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.
What fish are compatible with cowfish?
Placing the longhorn cowfish with the correct tank mates is highly important in order to prevent them from feeling threatened and releasing their toxin. Species such as dwarf/large angels, batfish, blennies, basslets, clown fish, dartfish, hogfish, and tangs are all good choices.
How big do cowfish get in captivity?
CharacteristicsCare DifficultyRanges from beginner to intermediate, depending on speciesAverage Life SpanUp to 15 years when properly cared for, depending on speciesAverage Adult Size1–72 inches long, depending on speciesDietOmnivorousMinimum Habitat Size10+ gallons, depending on species1 more row
How much does a longhorn cowfish cost?
Item #DescriptionPrice001018Longhorn Cowfish , Tiny: up to .75", Indo Pacific * Restriction On Guarantee$59.99001019Longhorn Cowfish , Small: over .75-1", Indo Pacific * Restriction On Guarantee$69.99001020Longhorn Cowfish , Medium: over 1-2", Indo Pacific * Restriction On Guarantee$89.992 more rows
Are longhorn cowfish poisonous?
The good news in all of this, as long as you're not a fish, is that cowfish, and other boxfish species, don't appear to be poisonous to humans. In some parts of the Pacific they are considered a delicacy, and roasted over the fire like chestnuts.
Do longhorn cowfish have teeth?
The longhorn cowfish has ten teeth on the top row of its mouth and ten on the bottom row, which have grown together to form two tooth plates. It uses these to cut through hard pieces of coral as if they were biscuits. This 10-centimetre-long fish is not easy to look after in the aquarium.
How much does a cowfish cost?
Item #DescriptionPrice001018Longhorn Cowfish , Tiny: up to .75", Indo Pacific * Restriction On Guarantee$59.99001019Longhorn Cowfish , Small: over .75-1", Indo Pacific * Restriction On Guarantee$69.99001020Longhorn Cowfish , Medium: over 1-2", Indo Pacific * Restriction On Guarantee$89.992 more rows
What fish are compatible with cowfish?
Placing the longhorn cowfish with the correct tank mates is highly important in order to prevent them from feeling threatened and releasing their toxin. Species such as dwarf/large angels, batfish, blennies, basslets, clown fish, dartfish, hogfish, and tangs are all good choices.
Are Box fish easy to keep?
This is a very difficult fish to keep in the aquarium setting by any other than the most experienced aquarist. It should have a minimum of a 125 gallon tank. Use caution if placing the Spotted Boxfish in a reef tank as they will often nibble at tubeworms.
What size tank does a Longhorn cowfish need?
100 gallonsThey 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.
What is a longhorn cowfish?
The Longhorn Cowfish is a popular boxfish that people love to refer as swimming cheese or the yellow box fish, not to be confused with the actual yellow boxfish. Despite their cute appearance the Longhorn Cowfish is one of the riskiest to own fish and can cause thousand dollar tanks to die in the blink of an eye.
How big do cowfish get?
Wild Longhorn Cowfish will often reach the full 20 inch size. In the aquarium they usually stay under 16 inches even when fed the best diets possible. Their bodies are hard scaled and cannot bend. It is easy to identify them using their two large horns and two long spines under their tail fin.
What do cowfish eat?
A good diet for the Longhorn Cowfish should contain: Dried brine or mysis shrimp. Live gut loaded brine shrimp. Chopped table shrimp.
Can a longhorn cowfish release poison?
The best case is only one dies. Once dead the Longhorn Cowfish cannot create or release the toxins.
Can a longhorn cowfish fight a puffer fish?
Longhorn Cowfish Tankmates. The Longhorn Cowfish is peaceful and should not start a fight with anything but other boxfish and sometimes similar looking puffer fish. New small fish may be chased occasionally but should not be in danger when around the cowfish.
Can you keep a longhorn cowfish in a tank?
Any aquarium that houses this fish should be built around them. Trying to keep the Longhorn Cowfish in a tank not meant for it can easily result in a toxin bombed tank. Be extremely proactive with any issues you see happening with the cowfish. Do not put these issues off for even an hour.
Do longhorn cowfish need a tank?
Longhorn Cowfish Tank Requirements. The Longhorn Cowfish is not at all picky with its aquarium. They do well in just about any aquarium that accommodates their size. The ideal tank should have plenty live rock with growing algae on most of the surfaces.
Range & Habitat
Primarily coral reefs in lagoons, on reef flats, and on protected seaward reefs, all throughout the Indo-Pacific.
Diet
Longhorn cowfish are omnivores—they feed on benthic algae, various microorganisms, foraminiferans, sponges, polychaete worms, mollusks, small crustaceans and even small fish.
Overview
This charismatic fish is a member of the boxfish family, and is easily recognizable by its long horns that protrude from the front of its head.
A Note from the Caretaker
The Aquarium's longhorn cowfish seems to enjoy the husbandry staff, frequently coming to the surface and spitting water in what might be an attempt to be noticed.
Quick Facts
Learn more about the longhorn cowfish! Did you know that this fish can excrete a toxin to deter predators?
How to keep cowfish longhorns?
This is intolerable to other Longhorns, so keep it in a big tank with some live rock to scrape the mussels. Be careful if the cowfish keep the Longhorn in a reef tank as it may be submerged in the reefs. When kept properly, the cowfish longhorns last longer.
How tall are longhorn cowfish?
Their natural habitat can grow up to twenty inches tall while captive longhorn cowfish, reaching close to sixteen.
What is the kaleidoscopic skin of a cowfish?
The description of the kaleidoscopic skin relates that the Longhorn cowfish has a plate-like scale that unites to form a grid that covers the box like a carapace. They are not visible to the naked eye but when the light falls on these fish, they produce a kaleidoscopic effect.
What is the poison in a longhorn cowfish?
Longhorn cowfish can also release a poison that will kill not only themselves but every other fish in the aquarium! There are cells under the skin of longitudinal cowfish that are known as club cells. They contain neurotoxins called ostracetoxin, which they hide when threatened, scared, sick, or dead.
What do cowfish look like?
What do they look like. The main color of the longitudinal cowfish is yellow from tan with blue and white polka dots. They may also have a dark brown to black glow around the face and eyes. Brown patches are sometimes found in the body as well.
How often should I feed cowfish?
When it comes to food, long-term cowfish are the most common and should be fed twice a day. They will not be able to compete with slower feeders and more aggressive feeders, so they should not be stuck with them.
What are the diseases of marine fish?
Common diseases of marine fish in this species are cryptocurrencies and lymphocytes. Cryptocurrency is a parasitic condition more commonly known as saline watery eyes or white spot disease. Symptoms are the presence of white spots up to two millimeters in diameter.
What is the most unusual looking fish?
One of the most striking and unusual looking fish is the Longhorn cowfish or Lactoria cornuta in scientific terms. We invite you to learn in this post everything about this very exotic fish whose popularity has increased in recent times
How many gals should I put in a longhorn cowfish tank?
Longhorn cowfish should be housed in a 150-gallon aquarium, provided with plenty of live rock and live sand for shelter and food. They love to eat and this fact along with the large size they reach in adulthood, can add a considerable biological load to your aquarium.
Where do longhorn cowfish live?
Longhorn cowfish thrives on lagoon reefs and offshore protected reefs, where it is easy for them to find a cavity or hole to hide if they are in need of doing so.
How often should I change my boxfish carbon?
Change the carbon every 24 hours.
What is the name of the fish that has hexagonal scales?
Ostraciidae Family. This fish belongs to the Ostraciidae family. Members of this family come in a variety of different colors, and are notable due to the hexagonal patterns (known as honeycombs) on their skin. Their plate-shaped hexagonal scales merge together into a solid, triangular or.
Why are Ostraciidae so slow?
Because of these heavy armored scales, the Ostraciidae are limited to slow movements, although few other fish are able to eat the adult specimens of this family. Although adults are generally quite square in shape, the young Ostraciidae have a slightly rounded silhouette and a brighter color than adult specimens.
What is the color of a longhorn cowfish?
The Longhorn Cowfish’s color is yellowish, with a very light green bottom, although there are specimens in other less attractive colors such as brown or gray. In addition, it’s worth mentioning that their body has dots whose color can be white, blue, brown or green. In this species there is no sexual dimorphism.
What is a longhorn cowfish?
The longhorn cowfish ( Lactoria cornuta ), also called the horned boxfish, is a species of boxfish from the family Ostraciidae, recognizable by its long horns that protrude from the front of its head, rather like those of a cow or bull.
What do worms eat?
They are omnivorous, feeding upon benthic algae, various microorganisms, and foraminiferans that it strains from sediments, sponges, polychaete worms from sand flats, mollusks, small crustaceans, and small fish, able to feed on benthic invertebrates by blowing jets of water into the sandy substrate.
How deep do sand fish live?
Adults are reef fish, often solitary and territorial, and live around sand or rubble bottom up to a depth of 50 m (160 ft).
Is longhorn cowfish poisonous?
It is apparently unique among known fish poisons; it is toxic to the boxfish and mimics sea cucumber toxins in general properties. The horns of the Longhorn cowfish may have evolved to make it more difficult to swallow for predators. When damaged, these horns can grow back within a few months.
Where is the Red Sea?
Red Sea and East Africa eastward through Indonesia to Marquesas, northward to southern Japan. Including Tuamotus, southern Korea, north to the Ryukyu Islands of southern Japan, south to Australia and Lord Howe Island, and off southern Africa in the Atlantic. Tropical and subtropical waters.
Where do juvenile acropora live?
Its primary habitat is coral reefs in lagoons, on reef flats, and on protected seaward reefs. Juveniles associate with Acropora corals. Depth range is 3.3–148 ft (1–45 m, perhaps up to 100 m).
Is an egg a pelagic fish?
Eggs and ichthyoplankton are pelagic . One distinction from other fish is the lack of a gill cover, which is replaced by a small slit or hole. The hexagonal plate-like scales of these fish are fused together into a solid, triangular, box-like carapace, from which the fins and tail protrude.
What is a longhorn boxfish called?
The body is tan to yellow and covered with white and blue dots, and is occasionally referred to as the Yellow Boxfish; however, the Longhorn is not to be confused with Ostracion cubicus, commonly called the Yellow or Polka Dot Boxfish .
How big is a longhorn cowfish?
In the wild, it is not uncommon to see a 20" specimen, while in the aquarium the Longhorn Cowfish tends to be dramatically smaller - 16" or less. When possible, the Longhorn Cowfish should be the first fish introduced in the tank. It is intolerant of other Longhorns, so keep it in a large tank, with some live rock for algae scraping.
Where do longhorn cowfish live?
The Longhorn Cowfish inhabit the reefs of the Indo-Pacific, usually in the less turbid waters. The body is tan to yellow and covered with white and blue dots, and is occasionally referred to as the Yellow Boxfish; however, the Longhorn is not to be confused with Ostracion cubicus, commonly called the Yellow or Polka Dot Boxfish.
Do cowfish eat out of their owner's hand?
The Cowfish Longhorn is extremely friendly and will eat out of its owner's hand. It requires pristine water conditions, or it may succumb to disease. Ultra-Violet Sterilizers are recommended with Cowfish. Also keep carbon in the tank or filter at all times to prevent die offs due to ostracitoxin release.
Can a cowfish longhorn be put in a reef tank?
Use caution if placing the Cowfish Longhorn in a reef tank as it may nibble on tubeworms. When housed correctly, the Cowfish Longhorn is long-lived. Similar to other boxfish, the Cowfish Longhorn's skin is poisonous and, when threatened, it will release a toxin lethal to other tank members, including other Longhorns.
