Sailfin pleco (Pterygoplichthys gibbiceps) is a kind of freshwater ray-finned fishes of Loricariidae family. This is a strong fish that eats huge amounts of algae. A couple of adult species can keep even large tanks clean. If a tank is rather large (of more than 70 gallons capacity) fish size can be up to 30-35 cm long.
Glass catfish (lat. Kryptopterus bicirrhis) — is a kind of freshwater ray-finned fishes of catfish family that inhabit in South-Eastern Asia. The first thing that catches the eye when you see this fish is how transparent it is – you can clearly see its visceral and spine.