I have a 5 gallon tank that I am cycling. I have been doing 4PPM dosing and at this point is taking 48 hours to convert it all to nitrates. I'm not having any nitrites show up during the conversion even after just 24 hours. I dosed the tank with just 2.0PPM yesterday and it got rid of it in 24 hours. I redosed with 2.0PPM today and will check tomorrow. Since he will be the only fish in the tank (as he is very aggressive to anything that moves in the tank including me) can I go ahead and do a large water change and put him in the tank?