Both are ideal for use with prime.
Api water conditioner vs prime.
I ve not used it but i have used other live bacteria products such as microbe lift.
Seachem prime fresh and saltwater conditioner 4 8 out of 5 stars 11 294 1 best seller in aquarium water treatments.
As you said prime is a water conditioner one of the best imo that neutralizes ammonia and other toxins from your water.
You will want to use only a drop per gallon 3 8 litre as it is very strong.
Ask any aquarist to recommend a good water conditioner and seachem prime will likely be the response.
As a water conditioner seachem prime is unbeatable.
If you use a water conditioner with your aquarium then you are likely nodding along at my top pick.
Use at start up and whenever adding or replacing water.
When adding new fish use stability.
Stress coat prime and lots of other things are called tap water conditioners.
Not only is seachem prime a complete conditioner but i found that it lasts the longest.
Some water conditioners like stress coat also neutralize heavy metals and help replace damaged slime coats.
Quickstart is a live bacteria product that is as you said used to decrease cycling time.
Api tap water conditioner aquarium water conditioner instantly removes chlorine and neutralizes chloramines.
This conditioner comes in liquid form.
At the very least tap water conditioners neutralize chlorine and chloramine which are disinfectants commonly used in municipal water supplies.
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.
It also detoxifies heavy metals in tap water.
When transporting or quarantining fish use seachem stressguard.