Splits in ocellaris tail fin

[theskibag]

Hey guys, two of my three ocellaris have started to get splits in their tail fins. Would this be a sign of stress?

They are 8 inches and in a 7' * 2' * 2' tank and all water parameters are good.

Diet good as well - NLS and shrimp.

I've recently added a 6 inch tilapia butti and he chases them the odd time. Apart from the tilapia they only chase each other.

Would you think this is the source of the stress or would they have outgrown the tank?

Any recommendations?

Thanks for the help.

 

[theskibag]

Anyone?

 

[RBoydIV]

Most likely from each other. They will heal if they stop nipping each other.

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[CichlaRyan]

How big is the tank, it could be possible that they have outgrown it, if it's occasional nipping it probably isn't entirely something to be worried about.

 

[theskibag]

Thanks guys, the tank is 7' * 2'