Scorpionfish
Because they are relatively inactive fish, most species can be kept in smaller aquariums than other equally large fish, and 30 gallon tanks are not unusual. Because they are capable of eating fish that are surprisingly large, but will often be picked at by fish that eat invertebrates a species tank is often set up for them. Some fish will never accept anything but live food, typically these specimens are fed on gut packed guppies, mollies, or Ghost Shrimp. Similarly to the Lionfish, care should be taken when handling these fish as they are also venomous.
The Ambon scorpionfish (Pteroidichthys amboinensis), is a scorpionfish native to the Indian and pacific oceans.
The Ambon scorpionfish is shaggy, and can change its color for the ideal camouflage. It has a wide head with a large mouth, and large pectoral fins.
The Ambon scorpionfish lives just offshore on the bottom of the ocean. The oceans in which it lives include: coasts on the west pacific, such as Australia and Fiji, coasts on the Indian Ocean, the Red sea, and the Yellow Sea. The Ambon scorpionfish is an ambush predator. It will camouflage itself, wait for some prey to come close in front of itself, and then lunge forward and inhale the prey.
Rhinopias aphanes is a Scorpionfish from the Western Pacific. It occasionally makes its way into the aquarium trade. It grows to a size of 25 cm in length.
Asian leaffishes are small freshwater fishes of the Nandidae family, from Southern Asia. There are only four genera in this group. They usually have small heads, coloration that appear evolved to resemble leaves and very large protractile mouths. Those features, along with their peculiar movements (seemingly intended to resemble a leaf innocently moving through the water) help them to catch fairly large preys compared to their bodies, including, specially, small fish, aquatic insects and other invertebrates. They tend to stay still in all areas of the water,perhaps to all predators of that chosen area.
Their odd leaf-like appearance, and unusual behavior, make them interesting fishes for aquarium hobbyists.
The weedy scorpionfish, sometimes also known as the popeyed scorpionfish, Rhinopias frondosa, is a carnivorous ray-finned fish with venomous spines that lives in the Indian and Western Pacific oceans, from Japan to Australia and from South Africa to the Caroline Islands. They are found in depths ranging from 13 to 90 meters.
The weedy scorpionfish has a highly compressed body, can reach a maximum length of 23 cm, and can vary considerably in color as well as appendages depending on its environment. Specimens found in rocky, algae rich waters are covered in weed-like appendages, whereas specimens found in deeper soft-bottomed waters with soft corals and sponges have fewer appendages. Color can range vastly from dark red and purple to yellow and lavender. The variations differ so vastly that the specimens are often misidentified. Further complicating identification, there is currently disagreement over the species Rhinopias eschmeyeri, which some experts consider not a valid species, but a variant of R. frondosa.