If you add leaf litter like slightly boiled catappa leaves, it will kick start your biofilm production.
If you have the "good" bacteria starter, and are beginning with a low number of shrimps, the tank doesn't need to be cycled at all. Just a slow and careful progression with food is enough to prevent any spike in a well planted tank.
But you need to use small quantities and seed the tank with bacteria regularly for a while. Keep thing in check and avoid large water changes.
Once balanced the tank will hardly need any water changes to keep in specs. All the food I give to around 200 shrimps per weeks holds in a 1/8 of a teaspoon.
In a 5 gallon tank you will see that it is a lot.