Heyo!! I have a 50 gallon tank that I’ve been cycling for the past nearly 20 days and I’m wondering if it’s almost done? I’ve been using dr Tim’s as well as stability. I’ll attach a chart of my ammonia, nitrite, and nitrate levels. (Note: I did a 50% water change on day 17) Should I do a large water change and add fish? I’m not sure what my next step should be. If you have any ideas please let me know, thank you!!