That is how the yellow tang can attack, not saying he is, but most likely as stated prior, he is just saying this is my land, SO BOW TO ME, YE SERVANT!!!
If the mimic isn't showing any damage and is just swimming slowly away, probably no need to worry.
Sometimes my Sohal chases my yellow tank, The yellow just backs into him whipping his tail around. Kinda neat to see.
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Setup: 180G DT, 105G Refuge (approx. 300lbs LR, 150lbs Aragonite)
Hardware: Super Reef Octopus SSS-3000, Tunze ATO, Mag 18 return, 2x MP40W, 2X Koralia 4's Wavemaker
Lighting: 5ft Hamilton Belize Sun (2x250W MH, 2X80W T5HO)
Type of Aquarium: mixed reef (SPS & LPS) with fish
Dosing: Mg, Ca, Alk
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