Black anemone

[carried]

Anyone know why a rose anemone would turn black? Is this normal?

 

[AquaRick]

No not normal at all....is it decomposing?

 

[carried]

No. It's just been smaller than normal.

 

[bettaowner]

I am just guessing here but it sounds like a stress display. How are the water parameters? Have you made any major changes? I am a freshwater fish keeper so this may not be very acurate.