Bpb
New member
Recently set up 90 gallon sps dominant mixed tank 4 months ago. On a piece of rock that found itself at the very bottom of the stack, it looks like a yellow polyp snuck it's way in. I really tried to remove as many pest species as I could from my previous tank but missed this one polyp. Next thing you know I blink and it's infiltrated and I can see will soon overgrow this rock and potentially others.
The whamming watermelon zoas that it's growing through..I can handle losing. I have a lot, but I would rather not remove this entire rock. It's about the size of a football and is supporting the bulk of my rock stack as it is.
How can I possibly remove the yellow polyps without taking apart the rock work