I'm actually having the same issue at the moment, specially with a juvenile Vlamingii tang. Did everything I could possibly imagine up to even lowering the salinity in case my refractometer wasn't properly calibrated (turned out not to be the case anyway), lowered the temp, changed 25% of water, started an air pump, directed the wave makers towards the surface to increase agitation, etc etc etc...if anyone could provide additional insight it would be appreciated, thanks.
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