Sick z?oo

[choupic]

One of my colonys of zoos is sick..It was fine A Week ago not sure of the cause It had a film form over them then they all fell apart heres some pics before and now

Now

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Test results
Sg-1.026
ph-8.2
nitrite-0
ammonia-0
nitrate-0
po4-0
kh-9
alk-3.20
ca-503

 

[melosu58]

Those are green button polyps. I really cant tell what is wrong with them. The second pic is the bottom of the rock right? Looks like some kind of sponge. Any more you can tell us. Reason I know they are green button polyps is because here are mine. They started like yours