April 20, 2005 9:37 AM Subscribe
How do I keep one goldfish from terrorizing another? I have two goldfish in a 5 gallon aquarium. They were the same size when I got them, but now one is bigger than the other. The big one bullies the little one.
posted by duck to Pets & Animals (15 answers total)
The big one will follow the little one around and push him and peck at him for hours a time. The little one is missing scales (and sometimes there are scales floating in the water) and at times appears to be injured. The big one will trap him up against a rock and just peck at him until I tap on the glass and scare them both. This gives the little one a few minutes reprieve, but he's at it again soon enough.
I've tried throwing some food to distract the big one, but he doesn't even notice the food and also I don't want to condition them (are they smart enough to be conditioned?) that bullying the little one will get him fed.
I know that "stay out of it" would normally be the answer,and I would be happy to do that if the little one weren't being injured.
The water is clean and filtered. They're fed regularly and well treated.