free delivery over £120

7 day guarantee

livestock delivered by us

Orders under £20 are subject to a £5 surcharge*

free delivery over £120

Orders under £20 are subject to a £5 surcharge*

Otocinclus Dwarf Catfish

(2 customer reviews)


  • We will contact you to arrange a delivery day
  • Delivery days are Tuesday-Friday
  • Quality Livestock
  • Reward Points

Earn up to 70 Points.

Common & Latin Name: Otocinclus Dwarf Catfish, Dwarf Sucker (Otocinclus)

Care level: Easy Max Size: 6cm

Diet: Omnivore
Temp: 24-27°C
pH: 6.0-7.5
Purchase size: 2-3cm


How easy are they to keep? Generally an easy fish to keep, best to keep in a aquarium with plants an driftwood. A fish that is widely used in planted aqua scape, as they are great algae eaters when kept in groups. A fish that will be attached on glass, plants, driftwood constantly eating algae.

How big do they grow? They can get around 4.5cm.

What is the best sized tank for these? A minimum of 30 Litres to house a group of these nano catfish.

What is best to feed them? Herbivore, will eat algae that has naturally grown, excellent for brown diatoms algae, however can supplement diet with algae wafers and even slice of cucumber.

What water conditions do they require? Naturally come from quite acidic water, so best to keep the water quite soft so would recommend a pH of 7-7.3 and a temperature of 21 to 26°C. Most importantly keeping stable water parameters and be careful during water changes to avoid extreme fluctuations in pH and temperature.

What can they be kept with? A great peaceful community fish, that can be kept with all species of tetra's, gourami, corydoras and many more. Be cautious adding Otto's with larger Angelfish and Discus as Otto's may eat the slime coat of the bodies, especially at night/morning.

Where are they from? Located in streams/rivers throughout the amazon river. Inhabits dense patches of marginal vegetation in streams, creeks and river. It’s also found in large numbers on the floating mats of vegetation commonly known as “floating meadows”, which provide a haven for many fish species.

Can they be bred in captivity? Has been achieved, but unfortunately very few details are available. Spawning occurs in a similar style to Corydoras species, with the fish forming the classic ‘T’ position, in which the male grasps the female between his pectoral fin and body and eggs and sperm are deposited.

If you require any advice on keeping these fish, please contact us and speak to member of the team.


Answer: Yes, fish are absolutely fine to be shipped, fish stores have their fish shipped to them also so it doesn't make a difference whether buying online or at a store. Your fish will have been shipped at some point. We want our quality livestock to be delivered in the best condition. We use high-quality poly boxes and heat packs. We ensure the bags are filled with pure oxygen and double bagged. We also use a reliable 24-hour licensed courier.


Answer: The 20 Best tropical fish for beginners we recommend are: Guppies – Poecilia reticulata Neon Tetras – Paracheirodon innesi Platy – Xiphophorus maculatus Zebra Danio – Danio rerio Dwarf Gourami – Trichogaster lalius Betta – Betta Splendens Silver Dollar – Metynnis argenteus Peppered Corydoras Catfish – Corydoras paleatus Tiger Barb – Barbus tetrazona Swordtail – Xiphophorous helleri Cardinal Tetra – Paracheirodon axelrodi Firemouth Cichlid Dwarf Cichlid Plecostomus – Hypostomus plecostomus Killifish – Fundulus majalis Mollies – Poecilia sphenops Cherry barb – Puntius titteya Harlequin Rasbora – Trigonostigma heteromorpha Loaches – Cobitidae Angelfish – Pterophyllum scalare


Answer: If you are thinking of keeping tropical fish, you need to know about the following main things: Size of your aquarium Firstly decide how much space you have for your new fish tank. Always go as big as you can fit, the bigger the better with fish keeping. Deciding what to fish to keep This will depend on the size of your aquarium. Research how big a fish is and will grow to. Small community to medium sized community set-ups are best to start with, unless you’re looking to create a biotope or species tank. Cycling your aquarium This is a very important part of keeping your cold water or tropical aquarium. Your filter is just a sponge and is no different than your washing-up sponge…until it’s “cycled” and loaded with beneficial bacteria. Maintaining your aquarium You should clean your tank on a weekly basis. A small 10-20% water change will help remove any build up of waste. Siphon your substrate and clean the glass, this will keep your tank nice and clean for your fish.


Answer: Yes, tropical fish will require a heater. A heater ensures the temperature stays steady during the course of the day. Generally, 25°C is the optimum temperature to keep most tropical fish, this is similar to what they are used to in their natural habitat.


Answer: The equipment you will need when it comes to caring for tropical fish include: A suitable fish tank Aquarium lighting Substrates and aquarium plants to help create a healthy ecosystem A filter system to keep your water clean and clear An aquarium heater A thermometer to keep to checks that the temperature is stable Aquarium test kits to check pH, ammonia, nitrite and nitrate levels Cleaning tools


Answer: In general, most tropical fish thrive on one or two feedings per day. You’ll need to adjust the quantity of food according to the size and quantity of fish in your tank. If your aquarium is new and you have just added your first fish, feed every other day and count the amount of food you are adding. A “pinch” is not accurate enough and may lead to overfeeding your fish.

What is Backorder?

Answer: Available on backorder means we do not have the item currently in stock but are able to order it in and get it out to you quickly.

What is your special local delivery

Answer: This is where we can deliver livestock to you ourselves to save it going to a courier. This means it will be handled with optimum care same day within the local area of our shop.

If you have any questions about this product please feel free to contact us and speak to a member of the team.

  E-mail Us: 

Call Us: 0123456789

Click on the live chat icon

If you live within a 10 mile radius of Birmingham University, and your order is £30 or over (not including postage), you qualify for the option to use our Delta Prime delivery service. This means delivery is at a discounted rate and is also hand delivered by ourselves. For livestock this means there’s no overnight shipping, and hand delivered with care by us. Once your order has been placed, we will contact you to arrange time for delivery. Depending on booking slots, orders placed before 12pm, can be delivered the same day or whenever suits you.


Delivery days & times

7 Days a Week: 3pm-7pm

2 reviews for Otocinclus Dwarf Catfish

  1. Sahina Colaco Dias (verified owner)

    All the fish came in good condition. They where alive. They are healthy and are eating well.

  2. Amanda Wass (verified owner)

    The livestock was well cared for and packaged really well, the fish and shrimps were in healthy and are happy in the tank. I was kept up to date all the way.

Only logged in customers who have purchased this product may leave a review.