Im sorry I have been trying to cycle and I had nitrite at 0 then it showed up for a couple days then was gone again and now its back
I would suggest you get a small bottle of a bacterial supplement. Tetra's SafeStart is good, I have used Seachem's Stability with good results. The smallest bottle, and follow directions. This is another form of seeding bacteria, and with the fish in the tank I would do this.