Reef safe?

[Cjsanders757]

can these be used for frags??

 

[Shep]

Whats it made of?

 

[Cjsanders757]

Travertine

 

[ebushrow]

I'm not sure....its natural stone, but I think it's limestone based which could dissolve in the water changing alk fast....also, I would check and see if it is treated with something as well