We first had to drill a hole on our shrimp tank cover because shrimp need oxygen to survive. Then, we got 2 strips of sticky foam and we had to stick it to our cover for our tank. Third, we had to gather all of our opae`ula dollars and redeem them for actual shrimp! I had 14 shrimp but that is still a lot. It was very cool how we emptied the shrimp out of the net and into the tank and how the shrimp were still alive. We finally had all of the accessories, shrimp, and gravel and it was super cool how we had a shrimp habitat.