I have never used it (seachems stability) but I have heard very good things about it in the marine industry.
It's a very good idea to dose bacteria or a source of good carbon that will feed bacteria, that will build up the
good bacteria super fast
, and should help with this cycle pal.
For some its not involved (keeping fish), they stick in fish they never test and there aquariums start to yellow, they over stock, over feed, algae starts to bloom all over the tank, they get fed up with the tacky look of the tank, the tank plants start to go white and they die, one fish might die and kill them all... then they end up out of a fantastic hobby.
I mean why would someone buy a tank, buy fish spend allot of money (and it is allot of money), to hope everything will just be fine. My mother is a classic example, I even asked her today when was the last time she tested her tank... she answered never... I replied that is why they are all dead lol (i never laughed lol).
I know the start is a little bit involved, but like all trades, and things alike, preparation is key!
Anyway this is starting to sound like a lecture lol, and its not meant to be
Enjoy it, test once a week buddy its nice and easy, small feeds to begin with until your tank is stable, then you can measure what you tank can handle
I cant wait to see pics pal.
Mick