The Reticulated Hillstream Loach (Sewellia lineolat) is an incredible creature that resembles an underwater butterfly. Like other loaches, i. photo: Charles König they look like a fossil stuck to your tank.
Bristlenose Catfish - a freshwater fish. Also known as bristlenose catfish. Actually they go by a lot of names - Bristle Nose Pleco, Bushynose Catfish, Bushy Nose, etc. This one in particular looks to be an Albino long haired bristlenose Pleco.