Setup new 3Gal PicoTope - Advice on maintaining

[piconewbie0722]

I just set up a week ago a 3 gal picotope just to mainly keep low to medium light corals. Have read a lot of threads on other sites stating how hard they can be with water quality and also stating they are very easy. I work from home fulltime so maintenance is not an issue. I can put up pics if anyone is interested. One guy stated on a very long post that he adds no additives, just daily topoffs and weekly water changes and posted some awesome pics.

I have read articles that state adding Purple Up and Nano Reef A and B should be done.

Just curious what everyone thinks as it seems most people add additives that arent really needed and eventually just give up.
Thx