This study aims to determine the physicochemical characteristics of nanocalcium snakehead fish bone with different solvents. The solvents used were distilled water, HCl 1N, and NaOH 1N. This study was carried out in an experimental laboratory used the Non-Factorial Randomized Block Design (RBD) method with 3 treatments and 2 replicates. The physical properties of snakehead fish bone nanocalcium…