From Pretty much any look at, these exotic fish resemble butterflies. They may have extensive flowing fins which make them look like they have got darkish brown wings flowing outward. In addition they try to eat insects. They may have an upturned, “frowning” mouth to help you them capture insects https://www.diigo.com/item/note/ba4ak/e7og?k=278b2c3d76e0e7b70568d2103df03c1e