Zoa base (stolon) turning white?

[NortheastReefer97]

Hi all, on my way out of the house i noticed that the base of one of my zoa’s is turning white and sort of fluffy, i haven’t tested today and am out of the house but as of 4 days ago the params were:

Po4: 0.01
No3: 5
No2: 0
Am: 0
Dkh: 9.5
Mg: 1240
Ca: 440

This is the oldest coral in the tank and has been in there around 5 months. Put off a new head maybe 2 weeks ago and the current heads are coloured up, but the base is white and fluffy. Other zoas have the standard purplish colour base. No lighting changes and they are under the stock evo lighting at the bottom of the tank. Haven’t added anything in a while, but I did treat with chemiclean 2 weeks ago and aiptasia-x (not on or near this frag) 2 days ago. I’ve struggled keeping my po4 and no3 up because of the light stock, but all my other coral are growing and doing great.

Any help would be much appreciated!

 

[JGT]

Pineapple sponge. Nothing to worry about.

 

[NortheastReefer97]

Thanks for the reply, should i do anything about it, Its not going to crowd or sting anything?

 

[JGT]

Nope, may eventually die off on its own.