Pleco Aquarium Size?



Topic: What is the minimum tank size I can have a common pleco in? Mine is around 4 inches long and I want to upgrade my tank. What size would be good for a plecostomus catfish? I plan on keeping other fish in the aquarium as well. Thank for your help.

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*Awarded Answer:
Posted by Nick H: Get the biggest tank you can possible! I know that seems a bit rational to say but it’s TRUE. Common plecos can easily grow 12 inches long and up! If you need a minimum tank size though.. I would say a 55 gallon would work but the fish will be on the brink of constantly out growing it. Something like a 75 gallon and above would be perfect. That way you can keep other cool fish in the tank too. I personally keep cichlids because theyre super hardy and tough (easier to care for).

  • I agree with Nick on this one. Get a 75 gallon or larger! You won’t regret it and it will be easier to take care of.
  • What is the minimum size tank for a common pleco? And what other large fish can I put with it? When it’s large, what will it eat?
  • Pterygoplichthys pardalis can easily hit 18″+ in proper conditions. At full grown size, I’d say a 6’x2′ tank. They are omnivorous. A good variety of veggies like zucchini is a good staple along with algae wafers and other pellet foods.
  • 75g and up. All varieties of common get huge. I just rehomed my gibbiceps that was getting too large for my 55g. He liked to swim around like any other fish and there just wasn’t room.
  • They get big I usually start them off in smaller but they do grow fast.
  • I have an albino bristol nose in a 35 gal and hes with community fish. I think its perfect size.
  • I agree with above poster. Mine got way to big for comfort in my 55 gal. They eat algea, algea wafers, and all types of vegetables. Mine would also pick up a shrimp pellet every now and then.
  • I had 2 in my 80 and need more room they were 12 and 14 in I moved them them to a 120 g pond
  • It’s amazing because when you get one from the fish store I feel like is a little bit of their job to let you know how big the tank should be and how big the fish get…….
Cobalt Aquatics 1.5" Round Pleco Cave
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  • I don’t trust the fish store. That’s why I’m asking before even buying the fish
  • I have no idea what meds are available to you but 2 things are universal : Aeration + gradually upping your tank temperature. Do this very steadily and aim for 30°C. Don’t just turn your heater to 30.. Do like 1°C per hour or so and you’ll have to keep it steady for a few days.
    Please check if your stock can handle this before you do this method. Hope this helps and good luck.
  • The plecos are territorial and fight for space. The blocks allow for them to have their own space. They can also breed in the block they choose. This setup is perhaps not meant for breeding, but for stocking and selling. Zebraplecos are commonly tank bred and raised these days. I know a very good breeder with large stocks.
  • How much would a zebra pleco cost in America? I’m in England and I’m just curious about differences in prices.
  • I’ve only seen them for sale here a few times. Lowest price I’ve seen was £120. Highest was £180, so I suppose the price is high wherever you are!
  • In HK, they can sell from $100 to $200 USD each depending on the age, wild or domestic, patterns, quality, etc….In Australia, imports are strictly controlled, quarantine also strict, etc…so I can imagine high premiums. This setup might work, but breeders tend to not have as many levels and larger tanks. These fish are from deep waters, so I can imagine this can work in breeding.