Chalice: Is something eating it?

[Blue Ring Octopus]

So my tank used to grow chalices really well until they do not. I purchased this chalice about 2 weeks ago and it was a full plug and now you can see it is almost all gone, yeah the picture sucks but you get the jest of it. What would cause this, no other hard corals only softies. All hard corals goes this way now. Thanks in advance.

 

[Blue Ring Octopus]

 

[Joe462]

Is that a vermetid snail next to it? So I doubt anything is eating it. It is dying, the snail might be causing some damage but it probably is mostly being impacted by sub par water or too much or too little light. Without more information all I can say is that it is not healthy and on its way out

 

[VintageReefer]

Agree it’s not being eaten, it’s deteriorating from water parameters, or lighting, or some kind of stress.

If all hard corals end up like this, I would look into water parameters and trace. My first tests would be alkalinity, calcium, nitrates, and phosphate.

 

[Blue Ring Octopus]

Thanks everyone, I will cut to the chase more than likely the water is bad, so I did a 5 gallon water change with Two Little Fishes pre measured bags, it is a IM 25 gallon tank. I will do a test on my parameters I will have to find my test kits, everything got moved and now in different places.
So I will do a 5 gallon water change once a week. Hopefully that is not too much.