Favia destroyed in 24 hours

[Pandelist]

Please help me..... how this happened ????
I buy a healthy favia nad I found it nearly destroyed in 24 hours
Please see the pictures and sent me any suggestion

 

[LetItReef]

How old is the tank and what are your parameters?

 

[brandon429]

That's not destroyed mine withdraw like that when I leave my whole tank drained for half an hour

Destroyed is white bone skeleton that's just withdrawn and still purple

Show other frags that have added mass, growth or new polyps in that system in order to learn details about that one

 

[Pandelist]

The tank is 8 months old
100 lit main tank
35 lit sub
Salinity 1026
pH 8,3
KH 7,7
NH3 0
NO2 0
NO3 25
PO4 0
Ca 410
Mg 1410

 

[Pandelist]

That's not destroyed mine withdraw like that when I leave my whole tank drained for half an hour

Destroyed is white bone skeleton that's just withdrawn and still purple

Show other frags that have added mass, growth or new polyps in that system in order to learn details about that one

I do not drain my tank
I put it inside my tank and in the next day I found it like that

 

[reeferfoxx]

The tank is 8 months old
100 lit main tank
35 lit sub
Salinity 1026
pH 8,3
KH 7,7
NH3 0
NO2 0
NO3 25
PO4 0
Ca 410
Mg 1410

Your parameters look good. Nitrates are a little high. Less than 10 nitrates is what you want.

Any coral next to it that could maybe sting it? Any algae present?

 

[bios]

Its not happy....
Top much light and on the rock it be not well
Place it on acrilic support free on all sides not under direct light
Low medium flow

 

[Snotdoc]

I'll bet on too much light. All of the favia I have took awhile to accomodate to higher lighting. Place it lower.

 

[Daniel@R2R]

I agree on possibly too much light. Also, how did you acclimate it when you put it into your tank?

 

[cloak]

I don't suppose you have a Peppermint shrimp in the tank do you? These have been known to pick at various corals.