Otocinclus Catfish

$26.99 NZD $22.99 NZD Save 15% Sold out
Tax included. Shipping calculated at checkout.

Live Fish

  • DOA Cover*
  • Insulated Box & Heat Pads
Shipping & Returns

All live fish are shipped using NZPost overnight services with authority to leave (no signature).

We cannot guarantee the overnight services, this is a service that we/you pay for; but is not guaranteed.

We DO NOT offer returns on any alive animal.

Above are key points of our policy, Click Here to read our full shipping policy.
Dead On Arrival (DOA) Cover*
  • DOA must be reported within 2 hours of delivery.
  • Bags must remain sealed (do not remove rubber band or tape)
  • Photos & Videos must be supplied this can be emailed or sent through live chat; including your order No. (minimum 3 clear images, showing dead fish & sealed bag)
  • DOA does not apply once the bags are opened & fish have been released.
  • DOA does not apply to any Rural (RD) address.

Click Here for DOA Cover Policy
Introducing New Fish

Follow these steps to minimize stress and ensure a smooth transition for your new fish!

  1. Float the Bag: Place the sealed bag containing the new fish in the tank. This equalizes the temperature between bag and tank water.
  2. Open and Add Tank Water Gradually: After about 5 minutes, open the bag and add a small amount of aquarium water into it every 5 minutes for 15–30 minutes. This helps the fish acclimate to the tank’s water chemistry.
  3. Wait 15–30 Minutes: Let the fish adjust to the water temperature and chemistry gradually in the bag.
  4. Release Fish: Gently release the fish into the tank without pouring the original bag water in.

Otocinclus Catfish

Otocinclus macrospilus

Otocinclus are best known as algae eaters.
These fish are some of the best algae eaters for your aquarium. It’s their natural food that makes them very easy to feed. They’re easy to look after too, so are great for beginners.

They’re peaceful creatures and can be put in a variety of freshwater community aquariums. Otos are small and peaceful fish that try to stay out of the way.

They could easily be eaten by larger fish so they are skittish by nature. You will see them dart across the tank when they get scared. They can move very fast, which doesn’t help when trying to catch them in a net!

Much of their life is spent at the bottom of the tank and on the surfaces of decorations, plants, and aquarium walls. If there are no algae, they will move onto a new surface.

A group tends to stick together, grazing the same areas. When a group is latched onto the sides of the tank you’ll get an interesting view of their underside, revealing how they use their mouth to get a firm grip.


pH range: 6.0-7.5 
Temp range: 21-28°C
Approx. purchase size: 1.5-2cm
Max size: 3-4cm
Diet: Herbivorous (Primarily algae-eating)

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