Well, I thought my tank was cycled, however 2 days later my ammonia was at 1. Did several large wc and it's been at .5 nitrite 0 nitrate 0. I also just rehomed my 3 Dojo Loaches because they need sand and I have gravel (thank you pet store guy!!). The thought of switching out the substrate is just too much for me right now, not to mention the extra expense (just recently purchased 75lbs of gravel). So now I have a vacant 75gal that is/isn't cycled . Any suggestions on what I should do now while I research my stock again? Mt prior research was based on the Dojos. Now I have pretty much a blank canvas for the most part. All suggestions/recommendations are much appreciated!!