I was about to answer the OP's post and you've gone and muddied the waters with your post. You should have started a seperate thread really so both issues can be addressed seperately without confusion.
I am the op but, will do for next time...
was trying to cut down on forum clutter...
Continue stability or what you think? I know the instructions say 7 days n such... also say ok to add fish, however I’m not keen on throwing fish into a nitrite death pool ?