Bought a small aquarium, now what do i do?

Sorry if I am going on a bit here but I was check out these tiny little bee shrimp, they look awesome in a large colony, great for small tanks and particularly good for zoning out, watching them in amazement.

https://www.youtube.com/watch?v=sVjYLHlOQqM

https://www.youtube.com/watch?v=RmHnKfTLgNw