Why are my Glofish aggressive?

yld

AC Members
Mar 30, 2011
40
0
0
Sunshine State
I have 3 and they are always chasing each other in the tank, now they are chasing my tetras and platys... What is wrong with them? the water parameters are totally fine.
 
First of all never say your water parameters are "fine" or any other adjective if you think there's a problem. Numbers are necessary! But possibly not in this case. Your Danios sound like they're being Danios, active, almost playful. If there's no damage to the other fish such as torn fins there's nothing to worry about. Btw how big is the tank?
 
Yes, just danios (glofish) being danios. They like to be in groups chasing each other. If you cannot get more glofish, get sme more zebras, and they will chase each other instead.
 
Thanks. I didn't know they were that playful. They are really fast, I like them. I have 3 so I'm going to buy more since I like them so much. I just wasn't sure why they were chasing each other like that but no damages. So I guess they are playing then.
 
I have 7 of these, in a 125 gal. with many other community fish and they seem to only chase each other and do not bother the other fish most of the time.
 
Glo fish are pretty nasty in smaller numbers...try upping them a bit. They're natural schoolers and need to be kept in larger groups. Plus they're fast and sometimes nippy in general, which is why I don't keep them :) Them and zebra danios are the worst.

:cheers:
 
:( I just noticed one of then is scratching against a fake plant I have... That means ich ughhhhh just treated my tetras last week...
 
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