We keep our chalice growing under ATI Blue Plus and Reef Brite blue LED’s, nutrition is provided by Polyplab Reef Roids and/or LRS frozen foods. Chalice thrive in nutrient rich environments with detectable PO4, NO3, and a DKH of 8(many corals will respond poorly to high DKH, please take that into consideration). It is our experience that most chalice do best in low light(less than 75 PAR). WYSIWYG