Well cycle begins when there's a ammon. from waste, so you need something to decompose, it could be anything, raw shrimp or whatever. Then your tank should cloud, the cloudy water can vary from tank to tank. Furthermore, as the cycle process continues, your test kits should be high while bacteria is being bloomed. Then the substrate will have some brown/red algae on it. At that point, you can put 1 cheap fish in to see how it goes