should i be worried-slow rtn?

[Giga]

I got this new piece and over the last week it seems to be coloring up-as it was completly browned out- but also seems to have rtn'ed like a cm.I Am kinda worried, can sps be growing and coloring up and rtn a little? And all the other sps are doing great and parameters are in check

You can see the white at the base of the frag, as well as some of the colorcoming back sorry for the cell phone pic

 

[Reef264]

I would be concerned, I've read and Experienced that Potassium Will reverse/stop STN.

 

[Giga]

So should I dose potassium, not sure where to get potassium supp.

 

[Reef264]

I used Brightwell Potassion, My Birds of Paradise recovered slowly over 4 weeks time Keeping my potassium levels just above optimal.I wouldn't dose potassium if I didn't have a test kit though, overdosing Potassium can get hairy in a hurry.