Quandale applesauce
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- Jul 12, 2026
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- North Carolina
I bought a pair of long fin ocellaris from my LFS 4 weeks ago. They are aquacultured and had been the only fish in their tank at the store for over a month. I have them in a 100gallon 4 foot tank with a canary blenny, a royal gramma, two fire fish and a hector's goby.
One is a little larger than the other. They were initially well behaved but in the last 1-2 weeks the larger one has become more aggressive. They shutter in front of each other and display and sometimes the smaller goes after the bigger one. I have attached a video. The larger one is darker in coloration. I think this is typical pairing behavior but I am concerned about the frayed fins on the smaller. Sometimes I see them on opposite ends of the tank. Then the larger one decides she wants to be aggressive and darts over.
My question is- at what point do I separate them and how do I reintroduce them? I don't want the smaller one injured or stressed to cause illness.
Thank you
QA
One is a little larger than the other. They were initially well behaved but in the last 1-2 weeks the larger one has become more aggressive. They shutter in front of each other and display and sometimes the smaller goes after the bigger one. I have attached a video. The larger one is darker in coloration. I think this is typical pairing behavior but I am concerned about the frayed fins on the smaller. Sometimes I see them on opposite ends of the tank. Then the larger one decides she wants to be aggressive and darts over.
My question is- at what point do I separate them and how do I reintroduce them? I don't want the smaller one injured or stressed to cause illness.
Thank you
QA
