Glass Catfish

Glass Catfish, Kryptopterus vitreolus, are also commonly known as Glass catfish. They're a peaceful yet extremely timid fish that are endemic to Thailand. They have see-through bodies which is where they get the name ghost or glass from. 

Due to their timidness, these catfish are most comfortable in groups of 6 or more. Ideally, they should be kept in 20+ gallon tank. They prefer temperatures from 72–82°F (22–28°C) and a pH of 6.0-7.0