Natural hitching posts

[cynster]

I am cycling a new display tank for my dwarf seahorses and I'd like it to be completely natural - but I don't know what natural hitching posts would be seahorse safe.

Could anyone please provide me with some suggestions of either macro-algae or coral?

And this is what the lighting would be, if it's any help:

 

[cmof29]

I just set up a dwarf tank too, and Im using caulpera.

 

[pledosophy]

For macro I think:
prolifera
codium
red grape
sargassum
halymenia

for corals,
gorgonia's, preferably non photosynthetic (get ones with white polyps)

 

[cynster]

Thanks for the suggestions you guys!