Ebay Chaeto

[xWascallyWabbit]

I just purchased some Chaeto off of ebay. I have never had it before. It should arrive tomorrow. Any advice for introducing it to my sump/refugium?
Should I freshwater dip? Just add it right away? Any thoughts would be appreciated.

 

[neonreef3d]

quarantine it, most chaeto has aptasia from my experience.