I think I probably caused some confusion here.
First, someone asked abotu cycling. I set up this tank as new 3 weeks ago. I let it run and had all the water levels checked at the lfs before adding any fish. We added 3 dwarf gouramis first. Did 20% water change twice in that period. Two weeks later we added 3 dalmation mollies. Through all of this I had fine readings until yesterday when I had the water tested. We had high nitrites so I did a 20% water change, cleaning the gravel slightly as I went per the person at the lfs. Then I tested with a strip myself bought at the lfs...and the spike in ammonia.
Second, my goldfish are not in the same tank with the gouramis and mollies. They are in a 20 gallon tank they have been in for the past 4 years and are doing well, with good levels, etc.
I am using Aqua+ which removes chlorine and chloramine. The temperature is a steady 78 degrees. I did not let the water sit out a full 24 hours, but it did sit for 6 hours after using the Aqua+.
Maybe the test kit is the issue. It has been over 24 hours and still no signs of distress or physical characteristics of ammonia poisoning. Also, the other levels, including pH, are either perfect or near perfect.
I think I might skip a feeding this morning just to be safe, but regardless will take my water and get it tested properly. If it is good at the lfs, I will toss the strips and cuss wasting everyone's time.
Really appreciate the help. Not new to fish, but have never had something like this happen before. My kids are getting into the hobby now (this is my 8 year olds new tank) so I don't want to spoil it.