The Siamese Algae Eater (Crossocheilus siamensis) is a longtime favorite in the aquarium hobby due to its active nature and its voracious appetite for various types of nuisance algae, including pesky black beard algae. It is a mostly herviborous fish that is gregarious as a juvenile, but is shoaling (rather than schooling) as an adult. As it matures, a distinct hierarchy develops within a group of this species, and stress and aggression are likely when the group contains less than 6 specimens. Voracious algae eater Will not eat ornamental plants Generally peaceful disposition with fish and peaceful larger invertebrates Very active and noticeable fish in any aquarium Very hardy Temperature: 72° - 79° F (22° - 26° C) pH: 6.5 - 7.5 KH: 4 - 15 dKH Minimum tank size: 50 gallons