Melanarus Wrasse cleaning Yellow Tang?

FTReef

New member
I noticed my Yellow Tangs this morning allowing my wrasse to pick at their sides. It looked very deliberate and the tangs took turns swimming up, presenting their sides to the wrasse. Is this normal? Is it a sign of disease that the wrasse is picking off? Should I be concerned?
 
As long as the tangs are going voluntarily and 'presenting'
as if they enjoy it, I'd just keep an eye on it. If you note a sore appearing on tangs, wrasse has to go.
 
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