aquarium_chung is a free open source photorealistic 3D openGL virtual aquarium i have written in freebasic with fishes, plants and rocks, decors .You can also pilot a mini submarine among the fishes and explore vaste 3D undersea with terrain relief . runs well on a n3540 cpu computer (60fps) .
download here => https://sourceforge.net/projects/aquarium-chung/
video => http://www.dailymotion.com/video/x52zs3w
(25/10/2016) sea version marine aquarium_chung2.zip added