Need help

[Pizzapro83]

I keep losing favia. I have had them for like six months. They keep turning white slowly. It is olly affection my favias. All my par are fine. They are not being stung. Could it be a bug? What could I do. I keep staring at my tank trying to figure out what it could be. Any help or ideas would be great.

 

[rock_lobster]

How fast do the individuals die really fast like in a week or two or over months?

 

[Pizzapro83]

A week maybe week and a half. I am doing a water change tomorrow. But what can I do? I take good care of my tank. I check my par everyday. Its not like I lose one coral . Its like the last month I am up tofour. Something is wrong. I have a fuge and the flow is really slow. Could this be bad?

 

[Sikryd]

What are all your tank parameters?

 

[Pizzapro83]

Alk 9 calcium 440 mag 1350 all other are 0. What do you think I can do? Will a pic help?

 

[ReefGeezer]

What "Par" are you checking, light? How about ammonia, nitrites, nitrates? pH? Temperature swings? Salinity?

 

[rock_lobster]

Well if they die in a week you know there is a serious water chemisty issue here. you should double check all your parameters and especially be careful when you add your reef supplements because the bottles sometimes list large doses like 10 ml a week or something and from my experience it doesn't mean 10ml a week in one day it is 10 ml over a week. Another thing it could be a some sort of toxin in your tank. How long has it been set up and what dosing chemicals do you use? What corals are currently alive in this tank? As far as the slow flow fuge as long as the macro algae is thriving your fine.