the purpose of that thread is to set markers for any cycle that does not use any test, it uses number of days in water as the primary determinant on the start date because a common cycling chart has that logged as day 10-12. by omitting non digital testing we omitted the open-ended start date, because only forums use that approach.
all pet stores that have ever existed, must deal with incoming life and don't have 30-90 days wait to prepare holding systems, they must attain a timely start date with every shipment received. they inflow and outflow bioload daily more than our tanks will ever do, yet their cycles hold and don't mini cycle. they're not buying cases of bottle bac to actually use, its to sell to us for a perceived need.
meanwhile on forums, you wait till December if the tests say to.
at marine tank conventions going on since the 90s they all have a determinant start date to arrange all those instant live reefs to be cycled by Thursday the start date of the convention. but in forums, you must wait 3 months if the kits say to
its all about disease preps, you cannot fail a cycle from a bottle or we'd have 1 dead tank there. other factors fill in for you if your bottle bac was challenged, we show by having twenty pages of happy fish.
on seneye, the first bottle of bac you bought was fine, and your non digital testing caused you to buy more. we track that tendency over and over above. it just happened to you
every one of those reefs was nitrite positive, and every one of those reefs met the ammonia drop date from a cycle chart which allowed for complete timeliness across the spectrum of tank uses. Randy's article on nitrite shows its flatly neutral, we didn't just make that up. its a fifteen year old article, today's aquarists ignore his writing
**I did not build that thread to earn the ire of all forum post peers lol its because I want hobbyists to have the exact same controls the sellers have, that simple. these are the tricks the sellers use to never lose stock and to save the most cash.