hey all! So I purchased and set up my first 20gallon long tank about a week ago. I used eco complete substrate along with gravel and a few plants as well as Seachem Prime and Stability every day since that day. I've tested my water for the last 2 days using SPI Fredhwater master kit and it's been at 0 nitrites 0 ammonia and 5ppm nitrates. According to everything I've read, this means my tank is cycled. Could this be true?! Forgot to mention I did a fish in cycle with four Zebra Danios.