Abstract: Portable and interchangeable marine tiles, marine pods and tanks are disclosed. The marine tile typically contains a first face, a second face, and one or more sites for supporting one or more marine organisms, such as coral, and. may contain a tracking device. The marine pod typically contains a first panel having a first slit and a second panel having a second slit. The first panel and the second panel can be interlocked via sliding the first slit into the second slit. The marine pod can have one or more marine tiles attached thereto. The marine tank typically contains one or more coral reef organisms. Water can be pumped into and through the marine tank to flow in the form of a river stream. Typically, the flow of the seawater is controlled such that a consistent temperature is maintained in the marine tank.

Abstract: Compositions for making native-like marine structures are provided. The compositions include materials, typically a limestone and/or ceramic composite, for 3D printing of marine structures. Environmentally-friendly 3D printing and coating methods are also provided. The methods can be used to print structures/objects composed of a 3D printing material such as the compositions described herein, and/or coat formed structures/objects with an adhesive, such as a peptide-based bioorganic adhesive. Compositions and methods for supporting the attachment and growth of marine organisms such as coral to a substrate are also provided. The compositions contain one or more self-assembling peptides suitable for use as bioorganic adhesives. The peptide compositions are suitable for adhesive applications in the marine environment such as supporting coral growth and restoration. Methods of using the peptide-based adhesive compositions are also provided.