HELP..Hermits and snails dead

i thought corraline algea is hard?? this stuff comes right off with a sponge, and is growing on my button polyps and seems to be killing them!

 

some time I will feed my nars some forzen silver sides, they consume it in a matter of minutes. but only do this about once a week if that.

 

corline is not rock hard and does come off. Red hair algae usuly carpets everything. plus snails don't eat cyano. If I am wrong what every you have growing on the back of your tank the snails are eating.

 

As far as the back glass, I am not sure from the pic if it is indeed Coraline. If it wipes or scrapes off easily it isn't. Add about 4 Mragarita snails, they cleaned up my bio like you wouldn't believe! And, they are still alive, so far.

 

my turbos are eating it! and my blennies. that probably what you seem blenny lip prints..lol

Has anyone ever used PURA phoslock? it's a phosphate remover, the same company has a filter pad that does it all, and i liked that so I was wonderng if this company is trustworthy.??

 

closer pic of back wall might help in determining what you have.

 

I use the granules in a reactor, it works! Try the Margaritas.

 

i use phosban

 

my turbos eat my corline that is why it looked like turbo prints I thought to myself that it is coraline.

 

i'll get a closer pic later. I just used Purple Up so the water is cloudy right now.
is my lighting ok? for corals and stuff??