YoYo's loaches and clowns??

[Lupin]

I have my 1 yoyo for more than 3 years and its happily living with other species,,earlier i used to have 5 of them but soon they began to fight with each other so i separated them all after few months:>>>

Were injuries visible? This is usually claiming for dominance. I've kept more than a dozen of them together and they simply get along fine with occasional bickering.

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