" What does host mean like go in make it there home if so what would be a good anemone for them to "host" then"
You will know it when you see it. The clowns rub and wiggle all over the anenome. They wallow with wild abandon and and then peek out at you from the arms of the anemone. Nothing else quite like it. They will "spit" food into the anemone.
The purple condy that hosts my clowns I bought with the sebae clown already bonded from a LFS
. Since then, the percula has also taken up residence. No major tussles between the two clowns,