Valonia vs Urchins

[TekCat]

Does anyone know what exact species of urchins munch on Valona?

[ACBlinky]

I don't think an urchin would be able to tackle Valonia, they're much more suited to scraping film and coralline algae from hard surfaces. My pincushion urchin has never eaten Valonia or Botryocladia, but he does sometimes pull a piece of bubble algae from the substrate and wear it for a hat :D

[TekCat]

I've heard that some urchins eat Caulerpa and other macro algaes beside scraping hard surfaces. So, I thought there's gotta be one that likes Valonia.