Description: The Siamese Algae Eater has an elongated, cylindrical body and the mouth is located on the underside of the snout, that forms a sucking disk perfect for anchoring to hard surfaces even in fast-moving water. They have a yellowish-brown, or greyish-green body color with a notable brownish-black stripe from the tip of the snout to the tail, and this stripe is often broken. They also have yellow eyes. The fins are transparent, but there can be black spotting at the base of the dorsal and tail fins. The back is a darker brown color, while the lower parts are silvery-white. Gyrinocheilus aymonieri possess a small, spiracle-like aperture at the top of each opercle, which are used as secondary respiratory openings through which water enters and passes over the gills before being expelled via the principal gill opening, so mouthparts can be used independantly for feeding and anchoring to solid surfaces. Unlike many cyprinids, they do not have barbels. This species is among the most well-known fishes in the aquarium trade but juveniles are typically being offered for sale with little to no information regarding temperament, adult size, and potential age. There also exist several ornamental strains including albino, golden, or marbled. The golden variety is sometimes subjected artificial dying, an undoubtedly painful process which involves injecting the fish with coloured dyes and normally leads to a significant reduction in lifespan. In its native countries, it is used as a food fish, and can be often seen in fish markets. An aquarium with base dimensions of 150x45 cm should be the smallest to keep them.

Sources:
https://www.fishbase.se/summary/12298
https://www.seriouslyfish.com/species/gyrinocheilus-aymonieri
https://animal-world.com/encyclo/fresh/cyprinids/chinesealgae.php
https://fish.mongabay.com/species/Gyrinocheilus_aymonieri.html
https://en.wikipedia.org/wiki/Gyrinocheilus_aymonieri