Why does my cory swim up and down the side of the tank?

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umitosora

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Feb 14, 2009
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I have added 6 Julii cory fish in my tank yesterday.

The fish swim up and down the side of the tank all day long! Non Stop! (They also like to do this in the bubble curtain.)

Now Cardinal tetras are copying and doing the same thing occasionally.

Should I be worried? Are they stressing out other fish?

I have 34 gallon tall tank.

Fish I have in there are: 1 Dwarf Gourami, 6 cardinal tetras and 6 Julii cories. DG plays in the same manner in the bubbles too. He has been doing this before I got cory) They are all juveniles.

Ammonia:0
Nitrite: 0
Nitrate: 10
Temp. 77F
 
majortank

majortank

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Jul 16, 2008
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My cories have been doing that for a year... Definitely nothing to worry about.

Cories is crazy. They do some weird stuff.
 
DoN_WoN

DoN_WoN

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Oct 16, 2008
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yea they do that all the time, just make sure u have a hood, they sometimes surf so fast they jump out of the tank..i lost 1 that way lol
 
bettabrat

bettabrat

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Feb 2, 2009
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I've had my cories forever and they still do it. They also play in the bubble wall sometimes, I think it's cute! They are just silly little critters :silly:
 
NeonFlux

NeonFlux

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Oct 16, 2005
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They are exploring
 
X

x3ro

AC Members
Jan 20, 2009
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Yea definitely nothing to worry about.

My cories did it the first week I had them too. They've stopped doing it for the most part.

I see them do it occasionally now.
 
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