Otocinclus compatibility

Otocinclus catfish, or “otos,” are peaceful, community-friendly fish that thrive in aquariums with other non-aggressive species. Due to their gentle nature and small size, Otocinclus are compatible with many popular freshwater fish, including tetras, guppies, rasboras, and Corydoras catfish. They also coexist well with invertebrates like shrimp and snails, making them an excellent choice for planted or nano tanks. As algae eaters, otos spend most of their time grazing on tank surfaces and plants, so they rarely disturb other fish. This makes them a great addition to tanks with species that occupy different areas of the aquarium, like middle or upper levels.

However, it’s essential to avoid housing Otocinclus with aggressive or large predatory fish, such as cichlids or large barbs, as these can cause stress or harm to the delicate otos. Otocinclus also prefer to be in groups of at least six, which helps them feel secure and encourages natural schooling behavior. This makes them more comfortable in the tank and allows them to thrive. Providing plenty of hiding places with plants, driftwood, and rocks is also important for their well-being, as they appreciate areas to rest and explore.

In summary, Otocinclus catfish are ideal for peaceful community tanks with other small, non-aggressive species. Their compatibility with a wide range of fish and invertebrates, coupled with their algae-eating habits, makes them a valuable addition to any well-maintained aquarium.