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How big of a tank do they need?

They are pretty hardy but get 4in some people say 2 but i say 4. i would say a 20gallon would be perfect.

For the 2" Paotocinclus jumbo that around here is sold as the Rubbernose Plec, a 5 gal would do it if he were the only fish, and a 10 to combine a school of something small. For a 4" fish that I guess is going by the same name, at least 15 gallons, preferably more.

-Molly
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It says they can get up to 6in here http://www.fishinthe.net/html/fishguide/fishguide_fish.php?FC=197&nl=7&nt=5

No, I'm pretty sure that the rubbernose pleco only gets to 4".

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And when he gets to Heaven, to Saint Peter he will tell: "One more Marine reporting, Sir! I've served my time in Hell."

all im trying to prove is that they get more than 2in.

That's a different fish than the one I'm talking about - that site clearly says "Rubberlip Pleco:
Chaetostoma milesi." I very specifically stated that the fish I'm referring to is Parotocinclus jumbo. How much more clear do I have to make myself?

And to reiterate:
2" plec: ~5 gallons, preferably 10
4" plec: ~15 gallons, preferably 20
6" plec: ~20 gallons, preferably 30+

[span class="edited"][Edited by LittleMousling 2004-08-05 14:36][/span]

-Molly
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uh i asked how big of a tank they need

lol i get you. which one of them are you getting?

Okay. There's a big difference between a pitbull plec and a rubbernose plec (commonly referred to as a "bulldog" plec). I think the confusion between the two stems from the fact that both are named after big, ferocious watchdogs X]. Anyways, IME, the latter, which seems to be more common in the aquarium trade than the former, expresses a great deal confusion and variability in it's identification. There are probably at least 3-4 different species out there now being circulated as rubber lip/nose bulldog plecs, most of them suposedly maxing at about 4-5 inches. I'd keep them in at least a 30. The little guys that mousling had mentioned can most definitely live in a 5, as they are both relatively stationary and small (2", anybody?). Finally, if you really have what was once called the "rubber nose" plec, now called the false or royal twig catfish, you should expect him to grow at least 6-7 inches in length, maybe more.