What's growing on your back wall?

[JoJosReef]

Wasn't the plan. I actually find them super annoying. But lo and behold the nuclear death palys I relegated to the back of the tank far away from the other zoas they always try to smother have taken residence on the back wall, and looks like they're making progress. Note to self: do not disturb the enormous colony of palys...

 

[Bpones]

I believe these were called “alien eyes” by the person who gave them to me …. Don’t think I’ll add them to any other tank I own lol