Tank size? Amount of lr? ls or cc? what fish do you plan to add?
Anyway, just look at the inverts, pick some you like, see if they get along and can go in your tank and order them.
But you need to order $79 worth of inverts efore the 9.99 surcharge and 4.99 fuel charge. In other words, you won't just be spending $79. It'll be 79 +9.99+ 4.99 and maybe tax, I don't remember.