Taenianotus triacanthus

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Facts
Latin name Taenianotus triacanthus - Lacepède, 1802
Local name Leaf scorpionfish
Family Scorpaenidae - Taenianotus
Origin East Indian Ocean, West Indian Ocean, Australia, Japan, Indonesia, East Pacific, Central/West Pacific
Max length 10 cm (3,9")
As aquarium fish
Minimum volume 100 cm (26 gal)
Hardiness Average
Suitable for aquarium Experience, preparation and extra care required
Reef safe Reef safe with caution
Aggressiveness Peaceful
Feed
Recommended Larger crustaceans (Shrimp, crabs...)
Fish
Beware of
Small aquaria

This species can be kept in a small tank, if it is specifically equipped to meet its needs.

It is recommended however, to keep it in an aquarium which is larger then described above.

Highly venomous

This species is highly venomous and this venom can, under certain circumstances, be fatal.

In case of poisoning, it is vital to have as much information as possible regarding the species/poison. Have telephone number for the poison hotline close to the aquarium.
Since people can have different reactions to poisons, take precautions necessary to ensure your safety and that of your surroundings.

Keep in mind
Feeding of predatory fish

These fish prefer live feed, such as live fish or shrimp. Some specimens refuse "dead" food altogether, while others can be trained to accept it.
Its easiest to move the frozen food around in front of the fish with a pair of tweezers. As soon as the fish shows interest and “attacks”, let go of the food.

They will try to eat all fish, shrimps and similar life forms that are small enough to fit in itheir mouth.

They should be fed a couple of times a week.
The fish and shrimps used as foods, must remain whole to give the Lionfish the optimum nutrition. The food must not be thawed naturaly, this helps to retain all the goodness.

Suitable live food are: Mollies, Guppies and Ghostshrimp. The feeder fish or shrimp should be fed with nutritious feed, like Cyclop-eeze for example.

Hiding places

This species needs good hiding places, for example, between live rocks.

Descriptions and further reading
Description

This Scorpionfish is suitable for aquaria, as it will come forward into the open.

It rarely eats "dead" food.  

Family description (Scorpaenidae)

Scorpion-/Lionfish (Scorpaenidae) are both pretty and interesting because of their special appearance and behaviour.

They are generally hardy and do not need a large swimming area, but do often require feeding with small live fish and/or shrimps. Some will quickly begin eating frozen fish or shrimp whilst others will refuse to eat "dead" food. Their food must be highly nutritious and varied. They must not be fed too often. Feed them a large meal twice a week.

These fish are mostly peaceful, but will eat anything that fits into their mouth. One might be surprised by how large their prey can be, they can even swallow fish which nearly match their own length. They will also eat each other, if the size difference is large enough. Their venomous spines do not guarantee that they will not be eaten by other predatory fishes.

Do be cautious when having your hands in the aquarium as these fish are very poisonous.

Some Scorpionfish require a special substrate, either coral gravel or fine sand, as this resembles their natural habitat.

Be careful when catching Scorpion-/Lionfish as they can easily get caught in the net.


FishBase
Aquarium trade Yes
Distribution Indo-Pacific: East Africa to the Galapagos Islands, north to Ryukyu and Hawaiian islands, south to Australia and the Tuamoto Islands.
German common names Schaukelfisch
English common names Sailfin leaf fish
Leaf scorpionfish
Leaf fish
Leaffish
Paperfish
Danish common names Blad-dragehovedfisk
French common names Poisson balance
Rascasse-feuille
Poisson-feuille
References and further reading

About references

Scott W. Michael. 2001. Reef Fishes volume 1 - TFH Publications / Microcosm Ltd. - (English)
Henry C. Schultz. 2002. Scorpionfish: Masters of Camouflage - Reefkeeping Magazine - (English)
Greg and Renee Hix. Scorpionfish in the Home Aquarium - Lionfish Lair - (English)
Greg and Renee Hix. Lionfish in the Home Aquarium - Lionfish Lair - (English)
Daniel Pomfret- 2007. Venomous Beauties: A Look at Scorpionfishes in the Home Aquarium - Tropical Fish Hobbyist Magazine - (English)