What is killing my poor little zoa

[H.B.O. Reefing]

I fragged this ZOA a while back , and now my zoas don't open this red thing is getting bigger and bigger...only on this one in the whole tank.....I'm puzzled.

 

[TheEngineer]

Looks to be plating coraline algae to me.

 

[H.B.O. Reefing]

Will it kill off my zoas, do i need to get off...thanks

 

[TheEngineer]

Normally that grows so slowly it isn't a risk to anything but algae.

Those are the only zoas in your tank that aren't opening? Have you tried a different spot?

 

[H.B.O. Reefing]

They are red people eaters and they are always happy until this came along....I have moved to a different spot thinking I did something wrong and no change... Do I need to frag them into two diferent frags and get them away from that.

 

[Tahoe61]

They are red people eaters and they are always happy until this came along....I have moved to a different spot thinking I did something wrong and no change... Do I need to frag them into two diferent frags and get them away from that.

I agree that it's an algae type, not certain on coralline.

Just to be on the safe side I would go ahead and dip and frag the piece. Obviously the Zoanthids are not happy and that algae type must be a fairly fast grower if it's already that big.

 

[H.B.O. Reefing]

Will do...I thank you very much.