Algae Identification

[DHill6]

Not GHA this time, pulled some from a snail shell and it’s growing on new ceramic sculpture. Kind of lettuce looking and curved. Identity and what to do about it?
Thanks in advance for any replies.

 

[Lovemyreef2015]

Looks like possibly blue green cyanobacteria

 

[ZipAdeeZoa]

Ulva perhaps?

 

[reef lover]

Does resemble ulva.

 

[lapin]

First picture looks like baby Ulva like said above.

Seaweed.ie :: Ulva or Sea Lettuce

www.seaweed.ie

 

[DHill6]

First picture looks like baby Ulva like said above.

Seaweed.ie :: Ulva or Sea Lettuce

www.seaweed.ie

When I first pulled a piece off it reminded me of ulva. Hopefully not bubble.

 

[DHill6]

Update: I treated the sculpture which was completely covered in ulva with peroxide. I removed the sculpture, corals still attached, using a syringe covered each area and took a toothbrush to it. I also didn’t rinse in sw, put it back in tank. Within hours a lot was gone, some turning see trough white color. Tomorrow will tell the truth, if it’s disappearing then good to go. Since the sculpture was new, only others added were snails. Could’ve came in on one even though I didn’t see anything.

 

[Leadfooted]

First picture looks like baby Ulva like said above.

Seaweed.ie :: Ulva or Sea Lettuce

www.seaweed.ie

Do you by chance know if this can be eradicated or only controlled?

 

[DHill6]

I don’t really know. I had a very good outcome with the peroxide. I’ve seen a few pieces on snails , I just remove it with tweezers. I run a SM drop 2 scrubber, I have noticed reds, golds, green when cleaning it with a toothbrush. On snails it’s deep green attached pretty good, to see through green to brown color, comes off easily like plastic.