6 Otocinclus

The Otocinclus, often called the Oto Catfish, is a small and peaceful algae-eating fish commonly kept in planted aquariums. Known for its slender body and dark lateral stripe, this fish is highly valued for its ability to help control soft algae without disturbing plants or other tank inhabitants.

Scientific Name: Otocinclus spp.

Temperament: Peaceful

Diet: Algae, algae wafers, biofilm, blanched vegetables

Minimum Tank Size: 10–20 gallons

Temperature: 72–79°F (22–26°C)

pH: 6.0–7.5

Adult Size: 1.5–2 inches

Behavior: Otocinclus are social fish that prefer to live in groups of 4–6 or more. They spend most of their time grazing on algae from plants, glass, and decorations. They thrive in well-established aquariums with stable water conditions and plenty of biofilm and plant surfaces to graze on.

Notes: Assortment includes a mix of colors and patterns; Exact colors and markings will vary; Stock photo used; fish received may differ.

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Domestic shipping only! Sorry, we cannot ship to anyone in Hawaii & Washington State.

We ship on Monday, Tuesday, and Wednesday via USPS Priority Mail. Once we get your order, we will ship it within 1 to 5 business days. For the safety of the animals, we do not ship aquatic life on Thursday and Friday. We do not want live aquatic animals sitting in USPS warehouse over the weekend. Thank you for your understanding.

Any orders placed before 12:00 PM on Tuesday will be shipped out that same week. orders placed after 12:00 PM on Tuesday will now be processed the following week

Male/Female: Will be picked at random (no custom orders)

Note: color may be slightly off from photo.

We placed a penny at the corner of the tank so you can have an idea of the size of the fish.

Guaranteed to arrive alive you have one hour of delivery to report any death. You must take a picture while the fish is dead in the bag before it’s opened.

Fish’s color might be off first 3 days due to shipping and stressed fish.

we do not refund shipping costs