Please help ID

[Erwan E]

This has been growing in my tank for over a year from a very small piece to 3-4 inches in diameter. It is growing in darker place in the aquarium, it it white- yellow.

 

[saltyfilmfolks]

I think it's just a sponge. You must have a happy tank.

 

[Erwan E]

Thank you for your response. My tank seems to be doing well. For some reason all different type of Montipora and cyphastrea went from 1/2' to 4-5 inches in a year. We are selling our house in CA and relocating to AZ next month and I must admit that I am having anxiety attack about moving the tank....

 

[saltyfilmfolks]

Yea happy tank. Yea that kind of move would concern me to.
I think I would look at it as rebirth. We do know how resilient life in our tanks can be.