Try using Nite-Out II and Special Blend both made by Microbe-lift. Nite-out II is your beneficial bacteria while Special Blend is the waste that the bacteria will thrive off of.
Well I think my nitrites are already converting to nitrates so I don't want to add anything that would possibly start the cycle over. But I'll look into it
Since you are already working on the fish in cycle, there is no point in adding anything more. Just keep up with the water changes and tests to ensure that you keep the parameters at safe levels and the cycle will complete