Hi gang. I've been doing this for a few years now. One of my problems is the chalice. I think they are beautiful and over the years, I have bought quite a few. But I watch them gradually turn black and die. I cannot give you tank parameters due to the various times I have had them -- I currently do not have any in my tank. But I do maintain my tank, and I check the parameters regularly. Those of you who know me, know this to be true. I have hopped online, read & watched videos, but I'm just not certain what I am missing. I've tried low and middle of the tank. I currently have black box lights -- blues are at 75% and whites/reds/greens are at 25%. I have quite a bit of flow. My calcium has always been within acceptable range, but on the low side of what is considered acceptable. This is natural in my water and I do not add calcium supplements. My pH has a tendency to be on the low side too (around 7) so I do supplement for that. Are there any secrets that I should know about? Are there any chalice gurus out there? I know this is vague and for that, I apologize. I'm asking because I'm thinking of trying them again. I'd hate to have to bury another body in my backyard.