I think what you have to worry about is infection, most likely the spines have bacteria on them... fish usually will brush themselves up against objects if irritated, like with ICH or in your case spines... Is he doing this? Hopefully he will get them out himself.
I would make sure to feed them good food, maybe soak it in Garlic and Vitamins before feeding. If you don't have this, LFS's carry liquid versions of both.
Hope he is ok.
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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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