I recently bought a BTA for my 2 percula clowns. For the first 2 days they did not want anything to do with it. On the 3rd day I woke up to them hanging out in the BTA! Now it has been about 6 days since I bought it and the clowns have not left the anenome. They rarely eat, only if the food comes within 3 inches of the anenome then they swim right back into it. They sleep in it, eat in it, play in it! Is this normal? This is my first attempt at keeping an anenome and just need some expert advice.