The one with and one without the flash. The biggest amano shrimp is a good 1.5 inches. When I got them, they were not even half inch. I actually thought I lost them all to fish cause I would wake up and find pieces of the shells on the ground (fish nibbling) and never saw them. Then one day they starting popping out of different holes in the driftwood. Didn't even realize the holes were that big.