I have two small clownfish one have had for months and added another in the weekend (got rid of his original match due to bullying) when first added him they were fighting for a while, I went out for a bit and when I came home they seemed to have already paired up, and new one had joined other in a bubble tip anemone he was hosting, all normal till yesterday when I noticed they both were no longer going into the anemone at all and clownfish I've had for a while is now trying to host a small anemone in the tank but he is way to big for it, he keeps on rubbing upto it and sticking his face into its mouth, has been doing this on and off since yesterday, other ones just cruising underneath big anemone but won't go in it? Anyone have any idea what could have caused them to leave the anemone?