If my nitrate is 5ppm, nitrite perfect zero, ph 7.9 and ammonia somewhere between 0 and 0.25, would it be safe to add something to my tank? Like a fish or a shrimp.. Salt is 1.22-1.023. All I have is snails and I'm getting bored.my tank has been cycled for about two weeks. Started the tank on Januaray the 8th.