Yes I have only been taking the hoot seriously for around 2 yrs I had a ten but never really gave it good care till I lost my favorite Clown 1 1/2 years ago so I’m still eating I have done research and have seen my coral get better if the last 4 month of better care I have pink zoas that have tripled in Size and even this Corla came back form the deadthat will at least get you going. although calcium is important, it would be the alk and phosphate that i would focus on when it comes to your issue.