Red-tailed shark (Epalzeorhynchos bicolor)
Red-tailed black shark (Epalzeorhynchos bicolor; syn. Labeo bicolor) is a carp species in Cyprinidae family. It’s quite unusual and not demanding fish that attracts attention with its rare body coloring – contrasting combination of almost black and red colors. The fish is definitely not for community tanks due to its aggressive behavior towards its tank mates.
Otocinclus catfish (Otocinclus affinis)
Otocinclus catfish (Otocinclus affinis) are commonly called “Oto Catfish” or “otos” is a small and not bright fish – however, it’s one of the most efficient algae eaters in a tank. Otocinclus together with Caridina japonica shrimp are able to keep you tank and all plants in it clean and tidy.
Jack Dempsey fish
Jack Dempsey (Rocio octofasciata, earlier called Cichlasoma octofasciatum) is a widely spread tank fish within North and Central America. Because of the fish congenital aggressiveness towards its tank mates the USA aquarists have called it Jack Dempsey by the name of the popular professional boxer.