Two problems Favia and Zoa

[guri]

My polyps recently got white spots I don?t now what they are
I did lugol's iodine dip today any other suggestion?

And my favia coral got its edges pale other favias are ok only one
I had it before and it went away but now some problem anybody knows what?s going on

Thanks a lot

 

[Chiefmcfuz]

What are your water parameters? Lighting parameters?

 

[guri]

What are your water parameters? Lighting parameters?

water parameters are good everything checked what about light metal halides for 90g two 175w i think favia has to be moved in shade but don't have an idea about polyps what are those white spots

 

[Chiefmcfuz]

What exactly does good mean?

 

[guri]

What exactly does good mean?

Temp 78/ph 8.2/alkalinity 9,/H3 0/NO2 0/P04 0,2/calcium 430/mag 1350/idine0,10

 

[nick96ss]

try a search on zoa pox