Killer zebra danio

[JM1101]

Just came home to 2 dead zebra danio, 2 hiding and 1 attacking everything in the tank. Pulled out all the danios. Never again will I have zebra danios, they're greedy, bloodthirsty killers. [emoji17]

 

[fishinstaller26]

Oh wow I never seen that behavior
I have in my community tank and they never attacked each other

 

[JM1101]

He just killed the other 2. 18 days in never seen anything like this before. He's all alone in his own gallon tank now. He also started nipping at the molly and platy and chasing my neon tetra. I don't know what happened in the 2 hours I was gone but it all hit the fan!

 

[JM1101]

He wouldn't stop. I was just watching for a good 5 minutes while he terrorized the tank before it set in that I had to get him out of there.

 

[Fresh2o]

I used to have 6 longfin blue danios (was under the impression that the longfin variety would be less active...silly me). An alpha female would occupy half of the 20g long. Any other danios that got too close to the "turf" would be mercilessly chased.
Their behavior might be different in a larger tank and in larger numbers.

 

[JM1101]

I had 5 in a community 29g tank. With 5 neon tetra, 8 platy, and 1 molly.

 

[JM1101]

I may have pushed my limits on fish capacity a little.

 

[ebjornsgard]

I have 6 in my 20 gallon community tank. That is really interesting behavior.