Was wondering if you thought the light coloration of the chalice rim is the start of it beginning to bleach out. It is on the lower third of the tank with light to moderate flow, but maybe the light intensity is a bit much for being a new addition and not having it on the sand bed upon initial introduction? Also received another Chalice recently and it arrived curling up, more arched like a cup. I read this could be a result of lack of flow?