Yes, agree with Tom. Ahh! You are so lucky! You have stumbled across a great forum and posted what you are doing prior to actually putting the fish in! We help with hundreds of cases I guess each year and there are just so, so many new hobbyists who come home from the LFS with bottles of potions and assurances that the potion will speed everything up and get them rolling with fish right away!
Even when a very experienced hobbyists performs a "from scratch" fishless cycle, they virtually never achieve a proper "working biofilter" in less than a month and its often closer to 70 days or so. The correct two species of autotrophic bacteria just truly don't grow any faster than that and are almost never found alive in any bottles (they are quite difficult to grow even in the fresh oxygenated water and correct ammonia feeding environment as it is!)
Now that you are here you have the chance to learn how to "qualify" your filter to see whether the claims have been met: A working biofilter needs to be able to process a 5ppm concentration of ammonia (as supplied by simple household cleaning ammonia of the right type) down to zero ppm ammonia and zero ppm nitrite(NO2) within 12 hours of when the original ammonia was dosed as tested by good liquid-reagent based test kits. (Short of million dollar lab equipment, this is the only practical way of knowing to an acceptable level whether the biofilter is actually -working- enough yet.
The major concern of the LFS (its a thing that has become kind of "built-in" in the industry, rather than a case by case thing) is to not "lose" you due to your own impatience. The true freshwater hobby really does require some ability to relax and understand the slowness of some of the things involved. The industry is playing the statistics, knowing they will keep more people if they push the process too fast and unfortunately, they actually get a secondary positive for themselves in replacing fish that have died or selling medications for fish that have been vulnerable to disease because the artificial tank environment was not yet really ready to sustain them.
I encourage you to have a go at learning how to carry out the tests on the filter (it does take at least a week or so to have any real feedback, not a single set of test results.) The members here in the beginners section are great at helping with just about any question you could have about it.
~~waterdrop~~
ps. Welcome to TFF!
