Curious what is wrong

[ReefOC]

So I got a huge chunk of GSP from a local hobbyist. It was amazing looking, the first picture doesn't do it justice, but today (bottom pic) it looks like it's receding and dying progressively. I checked my water parameters and they all look fine temp 78.1, Salinity 1.026, PH 7.92, Calcium 420, All 7.9. What am I doing wrong?

 

[tbrown]

It's not dead/dying, just unhappy. Has anything changed since you added it? Typically flow changes seem to affect it. Also, nutrients play a role in softy health. Low nitrates (and phosphates) means low food source.

 

[ReefOC]

It's not dead/dying, just unhappy. Has anything changed since you added it? Typically flow changes seem to affect it. Also, nutrients play a role in softy health. Low nitrates (and phosphates) means low food source.

Nothing really has changed since I added it originally. I think I have Dinos of some sort though. Any idea what to look for or change?

 

[tbrown]

Nothing really has changed since I added it originally. I think I have Dinos of some sort though. Any idea what to look for or change?

How long has it been in the tank?

Dinos can be evidence of low nutrients which is a good source for softies like GSP.

Is anything else in the tank upset or just th GSP?

 

[tbrown]

Also, the mushrooms in picture 2, have they always been there? It could be coral warfare. Softies (mushrooms included) can release toxins to try to kill other nearby corals.

Running carbon can help pull the toxins out of the water if that's what's going on.