New Frags Question

[Bulldog0407]

So I have recently started to buy SPS frags here and there. I have a few that I bought (Red Tabling Acro, Candlestick Acro, and Leng Sy Cap) that have encrusted more and started to grow. On the other hand I have noticed that a few corals (Lime in the Sky and Deswalli) did not. Instead the base, that was encrusted when purchased, has started to turn white. It seems to be receding slowly up the frag, but it does not look like RTN as the flesh is still there. Therest of the coral white part up is still colored very nicely. Is this something to be worried about?

PH- 8.2
ALK - 9.3
Calcium - 435
MG - 1380

All frags are dipped in CoralRX before entering the tank.

Thanks

 

[fishguy597]

How stable is your alk? You may want to keep an eye on them. If they start to stn more you might want to frag them a little above the healthy tissue.

 

[kikoreefer]

What's difference between RTN and stn?

 

[fishguy597]

Rapid tissue narcosis

Slow tissue narcosis

 

[suzig]

necrosis* haha.. kinda funny to think of it the other way though

i agree check your alk. did the frags that are starting to recede come from systems with much different lighting than yours? did you light acclimate? pics and more system info might help.

 

[fishguy597]

Omg too funny