Problem with corals

[1bigstud]

I use an aquarium pharmeceuticals r/o unit. I keep a garbage can full of r/o water. The stuff usually sits for a few days before being used to top up, or water changes.

[1bigstud]

Ok went to the lfs.
Tested for
Nitrate
Nitrite
Ammonia
Copper
Phosphate
Calcium
Ph.
Ph and calcium levels where bang on.
No ammonia, nitrates or copper in the tank.
Slight levels of nitrite and phosphate.
Salinity was 1.027 tested with a refractometer.
Any thoughts, could it be the salinity?

[reefwars]

Originally Posted by 1bigstud

Ok went to the lfs.
Tested for
Nitrate
Nitrite
Ammonia
Copper
Phosphate
Calcium
Ph.
Ph and calcium levels where bang on.
No ammonia, nitrates or copper in the tank.
Slight levels of nitrite and phosphate.
Salinity was 1.027 tested with a refractometer.
Any thoughts, could it be the salinity?

def wold be better to have the salinity lower i prefer 23-25 but i doubt it was that that killed the corals .get the phosphate downs and youll see better coulors and im not sure if theres and algae in your tank but if so it will kill that too.

do you run carbon??

[1bigstud]

I've ran carbon for about 4 weeks. I didnt think the salinity would have been an issue, there isnt really any nuisance algae in my tank.
really dont know what the problem could be.

[reefwars]

Originally Posted by 1bigstud

I've ran carbon for about 4 weeks. I didnt think the salinity would have been an issue, there isnt really any nuisance algae in my tank.
really dont know what the problem could be.

thats probably it too just a sudden shift to clean water from the carbon if i were you i would replace one of the dead corals and see if it dies off again