I finally finish cycling my tank about 5 days ago. I have been testing the water parameters ever day to make sure there were no ammonia or nitrites during those 5 days. I had high nitrates and did a water change and brought that down to about 0-5ppm. I took my water to my LFS and they told me I was good to go also. While I was there I bought 2 nerite snails and 2 panda corys and got home and acclimated them to the tank. It has been a full 24hrs since they have been in there. No signs of any ailment and tested my water parameters again today and got 0 ammo 0 nitrite and 0-5ppm nitrates. How long should I wait before getting more corys in my tank?