Birdsnest...sick?

[Brinkfish312]

What would make a birdsnest that has been perfectly happy and growing great for almost a year suddenly white out and cover in slime coat? It's wierd.

 

[saltyphish]

Any changes? What type of light? Other than that what are your water parameters?

 

[Stephanie11]

Temp spike.

 

[Brinkfish312]

The temp has been steady at 79-80, everything tested ok but the SG was a little low, like .021-.022. I know that's not super bad, but it's lower than what it's used to. It's the only thing I can think of.