I have a gbta that is not actively eating. It is in a 24g jbj cube with LED lighting. I have had it for about 3 months and it occasionaly ate a small piece of raw shrimp but that stopped after the first month. I bought 2 clowns a month ago and they are hosted by it but I do not see them giving it food. When I give it raw shrimp or frozen fish the food does not "stick" to the tentacles and in a matter of seconds it is floating away from the anemone. I can't say the anemone is getting smaller but it sure isn't growing. MY amonia and nitrate are close to zero. Any thoughts?