What's Missing in Aquarium Life?

Look at the top image. Look at the bottom image. What's different between them? Look again. Look closer. Are sands different? How about the direction of the shells? Maybe there's 2 strands on the sea grass in picture 1 and they're missing entirely in picture 2. Find all the differences before time runs out and you're on to the next level. Clear all 3 and you win the game! Have an awesome time when you try your eyes at What's Missing in Aquarium Life?