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Amazon Otocinclus (Otocinclus cf. macrospilus) – Group of 5


One of the most popular aquarium algae eaters (and for good reason), the Oto Cat or Otocinclus is a small, schooling suckermouth catfish found throughout much of South America. There are several species commonly imported for the aquarium trade, but of these the larger, more robust species found in the Colombian Amazon (O. cf. macrospilus) is probably the hardiest and best choice for most aquariums. Safe for all planted tanks and compatible with any peaceful tankmates, the Amazon Oto will feed readily on diatom and other forms of nuisance algae in the aquarium but should be supplemented regularly with sinking veggie-based foods, gel diet, and fresh vegetables like zucchini or romaine lettuce.

L129 Colombian Zebra Pleco (Hypancistrus debilittera)


A strikingly patterned, small growing species of Hypancistrus from the warm, acidic water of the Orinoco and its tributaries, the L129 Colombian or False Zebra Pleco is an ideal pleco for the small to medium community aquarium. Although normally shy at first, they will become more comfortable spending time out in the open over time and especially when food is added to the tank. Like most of their close relatives, the L129 is not a particularly good algae eater and prefers a more protein rich diet than some plecos. Peaceful toward nearly all tankmates, they can be territorial towards other plecos but will typically coexist without problems long as plenty of cover is provided in the aquarium.

Longfin Green Dragon Ancistrus (Ancistrus sp.)


A recently developed and sought after strain of the popular Bristlenose Pleco, the Longfin Green Dragon Ancistrus displays unmistakable greenish coloration paired with extremely long, flowing fins. Like all Bristlenose Plecos, they are exceptional algae eaters, grazing on diatoms and other nuisance algae in the aquarium. They are also plant and invertebrate safe, making them a unique and colorful addition to planted or aquascaped tanks.

Orange Zebra Oto (Hypoptopoma sp. ‘Peru Orange’)


A beautifully and distinctively marked relative of the common Otocinclus, the Rio Orange Zebra Oto inhabits Peru’s upper Rio Nanay, where it spends most of its time grazing on submerged driftwood and vegetation. An ideal algae eater for most community or planted aquariums, they will eat filamented algae and diatoms from most surfaces, including the aquarium glass. Like most of their close relatives, they are best kept in groups.

Rubber Pleco (Chaetostoma cf. formosae)


Found in the fast-flowing, clear waters of Colombia’s Rio Meta and its tributaries, the Rubber Pleco is a hardy, popular species and among the most effective plecos for diatom and other algae control in the aquarium. In the wild, they are commonly found in rocky, shallow water areas and should be provided plenty of cover in the aquarium. They are enthusiastic feeders and will readily accept fresh veggies, Repashy gel diet, and other prepared foods designed for herbivores and algae grazers.

Stick Catfish/Common Farlowella (Farlowella acus)


A unique suckermouth catfish that truly lives up to its common name, the Stick Catfish or Common Farlowella is an algae and biofilm grazing species found throughout much of the Amazon and Orinoco basins. In the wild, their twig-like appearance is effective camouflage against predators and allows them to graze on sunken tree branches and driftwood. In the aquarium, they are usually active and outgoing algae grazers that do a great job with diatoms and hair algae both on the glass and on decor. Safe for planted aquaria, they are compatible with nearly any tankmates.