Carib sea arches. Concrete covered in aragonite??

[fishybizzness]

Those shapes and arches are not natural occurring. They have to be assembled from smaller pieces. At least they use aqua scape cement and didn't just glue them together. A plus for them imo.

 

[TheNewGuy321]

Its probably a reef safe type cement, but its advertised as all aragonite. Just didn't expect it

Im with you, bought life shapes box both arches and cave were broke all I saw was mostly cement!