Sps are turning brown and white !!!

the white part is dead ?

 

is it too late to dip them ?

 

Yes. Unfortunately if you see white and you can see "pores" on the white, that is all gone coral piece. Cut the parts that are brown as inwall suggested. RTN cannot be reversed, so cut whatever is left, to save the corals affected.

 

Probably....you would have to put up a picture for me to know.

 

Have you done anything to bring the mag level up? I would double check as well.

Your mag should be at least 1350, the value of 800 sounds very odd to me.

 

That comment sure rose a flag on my side as well!! And forgot to even mention it! Good catch Coralline!

Try slowly raising your mg by 100ppm per day, which is considered the safe amount to raise in a daily basis. I don't think you really need more than the 1350. The higher your magnesium, the higher the calcium and ALK. But beware of too high Alkalinity.

- Mag.