Quickstart is a live bacteria product that is as you said used to decrease cycling time.
Api water conditioner vs prime.
I ve not used it but i have used other live bacteria products such as microbe lift.
50 ml 100 ml 250 ml 500 ml 1 l 2 l 4 l.
It should be used with every water change.
Api tap water conditioner similar to the seachem api tap water conditioner will remove chlorine from the tap water and will also work to eliminate heavy metals and chloramine.
Use at start up and whenever adding or replacing water.
It also detoxifies heavy metals in tap water.
As you said prime is a water conditioner one of the best imo that neutralizes ammonia and other toxins from your water.
Stress coat prime and lots of other things are called tap water conditioners.
When transporting or quarantining fish use seachem stressguard.
Ask any aquarist to recommend a good water conditioner and seachem prime will likely be the response.
Some water conditioners like stress coat also neutralize heavy metals and help replace damaged slime coats.
This conditioner comes in liquid form.
It will also detoxify any heavy metals found in the tap water at typical concentration levels.
As a water conditioner seachem prime is unbeatable.
Seachem prime fresh and saltwater conditioner 4 8 out of 5 stars 11 294 1 best seller in aquarium water treatments.
Not only is seachem prime a complete conditioner but i found that it lasts the longest.
When adding new fish use stability.
If you use a water conditioner with your aquarium then you are likely nodding along at my top pick.
Api tap water conditioner aquarium water conditioner instantly removes chlorine and neutralizes chloramines.
At the very least tap water conditioners neutralize chlorine and chloramine which are disinfectants commonly used in municipal water supplies.