Otocinclus Catfish (Otocinclus affinis)
Common Name: Otocinclus Catfish
Scientific Name: Otocinclus affinis
Origin: South America
Maximum Size: 1.5-2 inches
Tank Parameters
| Parameter | Value |
|---|---|
| Size | 10 Gallon and above |
| pH | 6.0-7.5 |
| Temperature | 70-79°F |
Temperament: Peaceful
Breeding: Easy
Difficulty: Easy
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FAQ
What is the ideal water temperature for Otocinclus affinis?
The ideal water temperature range is 70-79°F.
Is Otocinclus affinis suitable for beginners?
Yes, it is considered easy to care for and is peaceful, making it a good choice for beginners.
What kind of tank size is recommended for this fish?
A tank of 10 gallons or larger is recommended.

Ryan Hamilton –
Easy to set up and very peaceful in the tank. Keeps the water clean by grazing on algae. Works well with other community fish. Very active and healthy after a few weeks.
Madeleine Ferguson –
Grew well in a 10-gallon tank with stable pH and temperature. Not aggressive and doesn’t disturb other fish. Needs a bit of algae to stay active, but overall a good addition.
Jason Allan –
Perfect for a small community tank. Very easy to maintain and doesn’t require much attention. Stays calm and doesn’t chase other fish. A reliable and quiet fish.