First and foremost, RESEARCH! Every clownfish is different to every anemone. Some may never host even though they are normally a good pair. Also, make sure you know what you are getting into when it comes to anemones and the equipment they need. They are all fairly finicky, and require very high water quality, good lighting, and good feeding. BTA's are one of the easier to take care of, and are one of the most common to actually split in captivity. Make sure though, whatever anemone you end up choosing, that it has a good natural color (isn't dyed) and isn't white as this is a sign of an unhealthy anemone that has gotten rid of all of it's algae.