about 1 1/2 – 2 inchesOtocinclus Catfish Size They can grow to be about 1 1/2 – 2 inches when fully mature. Because Otocinclus Catfish size is small, they are very quick fish, being able to dart from one end of the tank to another in a flash.

How many Otocinclus should I get?

Otocinclus are social fish, living in shoals of thousands in the wild. Because of this, you’ll need to keep at least 6 in your tank – 10-15 would be better.

What is the lifespan of a Otocinclus?

Otocinclus Facts & Overview

Category Rating
Temperament: Peaceful
Color Form: Various, most have a brown stripe down their body
Lifespan: 3-5 years
Size: 1-2 inches

Can I keep just one Otocinclus?

Ideally, you should keep otocinclus catfish in a shoal of 6 or more. To do this effectively you should have a tank that is 29 gallons or bigger. However, it is possible to keep a single otocinclus in a 10-gallon tank, but it’s not recommended.

Are Otocinclus good algae eaters?

The Otocinclus Catfish, or the Oto Cat is another peaceful fish that’s known for their algae-eating habits. They’re quite small, reaching only 2 inches in length, and do well in small community tanks. These little guys are talented at removing brown algae and new algae growths from tanks.

Do Otocinclus produce lots of waste?

Yes, otocinclus produce a lot of waste. They constantly graze on algae around the tank, so even though otocinclus can help you control the tank’s algae growth, they are also constantly producing their own waste.

Do I need to feed Otocinclus?

An Otocinclus feeds on soft algae buildup growing on hard surfaces of the tank. That’s why its important to make sure the tank is clean, but not “too clean”. Otocinclus food can also include supplements such as algae wafers and even some fresh vegetables like green zucchini slices.

How many Oto catfish together?

How many otocinclus catfish should be kept together? We recommend at least 4-6. Just be sure that your tank is large enough.

Can otos live with bettas?

Unfortunately, otos do not make good tank mates for betta fish. Bettas are aggressive fish and need to be kept on their own when placed in smaller tanks; even females need to be carefully watched for aggressive behaviors.