“…Recent research includes the printing of scleractinian coral skeletons with Colorfabb co-polyester (nGen, XT), PLA-PHA, and Proto-Pasta PLA-based filaments as an exploratory study for coral reef behavioral research and the printing of 1 m coral-shaped structures for reef restoration. , Other studies incorporate the printing of coral specimens at their natural size by the tangible props method with epoxy and plaster using inkjet-based printing. , Conventional approaches include materials like sand, plaster, plastic filaments, cement, and basalt fiber. , Similarly, cement, sandstone, and PLA have been used for the 3D printing of coral skeletons from Turbinaria and Oulophyllia species. The construction of coral units with the powder-bed fusion method has been achieved using sandstone powder, and by inkjet-based printing with ceramic clay. ,,, Moreover, printing of several coral species by FDM, SLA, laminated object manufacturing (LOM), and binder jetting have been reported . To date, most attempts of 3D printing coral structures used synthetic materials with some reports of printing with plastic-based filaments…”