two real white betta fish swimming in a natural slow-motion circular movement, hyperrealistic translucent fins with subtle imperfections, slightly uneven edges, realistic skin texture with fine natural scales, pores and micro scratches, natural color variation, soft biological gradients, subtle veins in fins, wet glossy reflections, lifelike eyes with moisture reflections and depth, tiny bubbles in the water, soft water distortion around fins, professional underwater macro photography, shot through real glass, natural light scattering, soft underwater shadows, slight lens softness near edges, extremely realistic lighting physics, volumetric caustics, natural motion blur, high contrast black background with soft vignette, no artificial patterns, no stylized look, 200mm macro lens, shallow depth of field, ultra photoreal, National Geographic style, 16k resolution, realism, breathtaking realism