Its probably necessary to 'displace' the existing territorial fishes before adding new ones. Just sharing this video in a hope that more reefers have a better shot at keeping ATs alive. Its such a pity to hear so many dying in the initial phase.
Having said that, its still very uncertain how my AT will do.
There are 2 models of the Clarisea fleece system. Maybe the smaller one may fit or place it in the skimmer compartment & feed it with a pump. The filter wool section can be used to place bio media.