bioreactor, Subnautica Below Zero, underwater, high-tech, cylindrical structure, metal texture, glowing green interior, algae samples, aquatic plants, transparent tubes, futuristic, submerged in ocean, seabed, surrounded by fish, soft blue lighting, wide-angle shot, detailed machinery, sci-fi, ambient ocean light, coral reef background, bubbles rising, 3/4 view, metallic sheen, sleek design, efficient energy conversion, sustainable technology, alien technology, game concept art style.