Ok , so you've gone the speedy quick version of cycling you're tank , no problem ,
When the 4 days is up then do a water change as mentioned and retest what I said and post.
Everyone has different ways to cycle their tanks , I personally wouldn't do the quick way like that but that's my opinion,you can do it you're way and it works and I'm not knocking it ,
Let's see where you are after the 4 days and a water change .
Look forward to seeing results ,
And when you do feed the fish only put in a bit , just enough so it's gone in a couple of mins .
You'll be fine , one step at a time , Rome wasn't built in a day as they say .
We're all here to help