Humpback Grouper Low-poly 3D model is available on CGTrader for $5. Original author: maggie3d. Specs: 2568 polys, 2570 verts.
BLEND (Blender, filesize: 1.19 MB), OBJ (OBJ, filesize: 343 KB), FBX (Autodesk FBX, filesize: 179 KB), GLTF (glTF, filesize: 6.2 MB), DAE (Collada, filesize: 658 KB), STL (Stereolithography, filesize: 251 KB)