I got a used 10gal tank with hood, gravel, internal filter with Knee High pre-filter and a double sponge filter. How do I cycle it for my shrimp without fish? I have some Java fern but nothing else. How long after it cycles can I add Red Cherry Shrimp? I read that if I add Tetra Safe Start I can add fish immediately but what about shrimp? My other two tanks are dirted and planted. I guess the plants helped cycle them.