Multiple Plecos

tetraboi

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I have always been hearing about how you cannot put more than one pleco per tank. But the fishkeeper said that you can put two in a tank. Is this true?

They are both small plecos and it is a 20 gal
 

Goldiemom

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Some get away with it. I tried but unfortunately one killed the other.
 

Bry

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That depends on kind of pleco and how big the tank is. I have two clown plecos (which get about four inches) in my 55. But if those are common plecos you have, they get like two foot....
 

2211Nighthawk

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It depends. I have a pair of proven male bristlenose (also only about 4-5” long). The elder was from a packed tank so he was used to sulking away while the younger was a good 2” shorter and was used to being alone. Got a little violent the first time they ended up in the same cave during a water change but I’ve seen them a couple times pretty close to each other. Close enough they know the other is there anyways. So far no scrapping and they have half a dozen caves between the two of them. It’s also a 65g tank and they have other loaches to scrap with.

That being said, for a 20g, I absolutely would not have 2, becuase even a 20g is pushing it for the smaller plecos. Do you have a picture of yours?
 
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