IMO cal alk and water quality play a strong role in succeeding with them, too much flow can be extremly detrimental, and insuficient lighting can also be harmfull, they will also benifit from small meaty foods (cyclops dapnia etcetera). I feel they do best in well established tanks that dont suffer the oft found quirks and swings of younger tanks. I would recomend a begginer avoid these untill they felt truly comfortable with their tank as chalice can be quite costly.