I had two clowns that hosted a variety of things in my tank, all at different times. They were hosting a frogspawn for quite a while (even though I had a Red Bubble Tip Anenome in the tank at the time) in my 46 gallon bow. When I transferred them overto my 150 gallon there was a little while, maybe a few weeks, that they didn't host anything. They ended up right back in that frogspawn for a little while. Eventually they ended up hosting the RBTA though, so even if you leave them where they are they might end up hosting something else.
But I think you should be fine.