LPS won't open (pics)

[Genix]

water params:
SG 1.026
pH 8.2
NH3 0
NO2 0
NO3 0
80 degrees F

this coral appears to be made up of six individual polyps. i've had it for about two months. it's taken on a beautiful healthy color since then and appeared to be doing really well. recently, the polyp on the very left hasn't been opening (as you can see). any idea why? i use tapwater, which is quite high quality, but my R/O unit should be arriving soon. help save my coral, please! i love it.

 

[seaham358]

bubbles will do this from time to time??, is the clown trying to host with it at all? If so that will cause the bubble some problems. My GSM almost killed my bubble.

 

[melosu58]

Tap water could be a problem

 

[Genix]

i just did a 25% WC with R/O water and that polyp opened up right away!

 

[melosu58]

Case closed