They want you to use all of their products.
You will have lots of algae with the lights and and then will have to use their algae remover.
That is fine.. good marketing, and a solid plan, and products you can buy. I have nothing against that.
In all reality though, if you leave the lights off your tank will still cycle (without algae - so no need for algae remover).
Also, the bacteria and stuff they tell you to add isn't necessary and probably won't help (unless your mind is set to follow the book and use their products). All you need is an ammonia source.