What corals will clownfish host in?

[C1ownfish]

like a tunnel

 

[Sharkbait19]

Something like that. Arches usually look good. You can browse the fry rock at the lfs for ideas or superglue rubble together. I did both in mine. This is how mine originally looked before the rescape:

 

[TuxUrchin07]

Anything except acros pretty much. Mine host in my space invader pectinia