Any ideas whats wrong with this coral?

[spoono]

Sorry to ask, I'm new to corals. Got this from my LFS last week and it's been fine up until yesterday morning, it had been knocked off by a hermit crab. I've placed it back where it was and used some aquarium epoxy to stick it but it seems to have completely shrunk and lost polyps on one of its heads. Been over 24 hours and hasn't come out since. I have a few other corals that all seem to be doing fine. Is it just being dramatic? Or is it a lighting/nutrients issue? Appreciate the help

 

[Tahoe61]

What type of lighting?
How old is the tank?
Do you have basic chemistry values?

:)

 

[spoono]

Hi. It's the stock Fluval Evo light
It's about 6 months old
I don't have calc and alk but the tests I do have are as follows

PH 8.2
Ammonia 0.25ppm
Nitrite 0ppm
Nitrate 5ppm
Salinity 1.025
Temp 26c
10 to 20% water change weekly (due today)
All livestock and other corals seem fine

 

[Tahoe61]

Hi. It's the stock Fluval Evo light
It's about 6 months old
I don't have calc and alk but the tests I do have are as follows

PH 8.2
Ammonia 0.25ppm
Nitrite 0ppm
Nitrate 5ppm
Salinity 1.025
Temp 26c
10 to 20% water change weekly (due today)
All livestock and other corals seem fine Keeping stoney corals in smaller tanks is not an easy task. At 6 months there should be no detectable Ammonia. If you used an API test strip it might not be an accurate value.

The coral is an LPS, that coral is a type of Euphyllia. Not one of easier corals to keep for newer hobbyist, especially in a small tank.
With the Fluval Evo I would stick to the soft corals for the time being. Make sure to get test kits for alkalinity and calcium. Lps require specific values to thrive.
For now it looks like you should proceed with the water change and hope for the best.
Imo it's both a lighting issue and nutrients. Nitrate value of 5 is low.

Welcome to R2R.

 

[spoono]

The coral is an LPS, that coral is a type of Euphyllia. Not one of easier corals to keep for newer hobbyist, especially in a small tank.
With the Fluval Evo I would stick to the soft corals for the time being. Make sure to get test kits for alkalinity and calcium. Lps require specific values to thrive.
For now it looks like you should proceed with the water change and hope for the best.
Imo it's both a lighting issue and nutrients. Nitrate value of 5 is low.

Welcome to R2R.

Thank you. All my other corals are softies and they're fine so that makes sense. Annoyingly I asked my local LFS for corals suited to a newbie and that's what he gave me. Lessons learned. Appreciate the help. I'll be ordering test kits for both Alk and Calc today.

 

[WhatCouldGoWrong71]

I’ve lost heads when hammers and the alike have landed in the sand bed. Sometimes nothing happens, sometimes the head bails. What everyone else said plus this. But for me, typically if I lose a head, it was due to it coming into contact with something.