George means nothing by this. Plz don't take offense Nancy. It's very unusual to create a thread and direct it to a single person. Typically in those situations you just create a private message. That's all he's saying. Nothing more and nothing less.
Now we know that since dave wasn't responding to her on the corals he sold her, she felt it was necessary to reach out in this way. So it makes sense for her to resort to that. I think if you had just asked the group though you'd get plenty of great help.
Anyways, I hope you stick around. You and your husband have a very infectious enthusiasm for the hobby that I thoroughly enjoy.
As for the corals, if a cyphastrea is struggling... There are a few things to check. First, they are sensitive to high nitrates. I lost whole colonies a year ago during my nitrate spike. The most common issue though is simply placement... They are low light corals and do best at around 50-100 par. They can be acclimated to higher par but do best in lower light. If you need to borrow a par meter, the club has some that you can borrow. Someone can help you test your water as well. I'd be happy to do so and you can leave a sample anytime with me. Best of luck.