Butterfly Fish Klein
The Klein's Butterflyfish Chaetodon kleinii is not the flashiest or most beautiful butterflyfish, but it is very hardy. It is one of the smaller members of the Chaetodontidae family. It could reach close to 6 inches (15 cm), but will rarely grow over 5 inches (12.5 cm) in the aquarium. This fish exhibits all the grace and beauty of its relatives and has the same characteristic elegant form.
This fish has an oval, disc-like shape with a pretty yellowish brown color. There are one or two broad white bands running vertically down the body and many spotted horizontal stripes on the sides. The body is contrasted with a strong black vertical stripe running across the face that has an almost metallic blue hue just above the eye in the adults. There are many descriptive common names it is known by including Sunburst Butterflyfish, Blacklip Butterflyfish, Orange Butterflyfish, Bluehead Butterflyfish, Whitespotted Butterflyfish, Yellowspot Butterflyfish, and Brown Butterflyfish.
This is one of the few butterflyfish that can be recommended to beginners. It is one of the most durable butterflyfish, but the key to successfully keeping it is getting a strong, healthy specimen. The biggest challenge with these fish seems to be in transportation. So to get the best specimen, make sure sure it has acclimated and is eating before you purchase. Once this fish is acclimated It will take a variety of foods and no special care is needed to maintain it.
It does need a good sized aquarium that is well established. A 55 gallon tank is the minimum size for a single fish, and a much bigger tank will be needed if you want to keep more than one. Decorate the tank with rocks and/or corals with many hiding places along with plenty of swimming space. It swims freely and usually spends a good deal of its time in the open water, traveling along the substrate when looking for items to graze on.
It will work well with a variety of tank mates including moderately aggressive fish. It can also be housed with other butterflyfish, even its own kind, as long as they are all introduced simultaneously. The only caveat here is that two males will fight, and so will have to be separated if that occurs. Many reef-keepers hope to keep it in a mini reef, but like many butterflyfish it can be a coral eater and so is not recommended for a reef tank. Success may be achieved if it is well fed and has carefully selected corals. But it does eat most soft corals as well as sessile invertebrates, and may very well begin to nip on hard coral polyps