This is the thread I use: http://www.bettafish.com/showthread.php?t=111960
AQ salt is for treating external illnesses like Ich, Velvet, Body slime infections and fin rot. To be used no more than 14 days at a time and never for a therapeutic dosage as it can harm a fishes liver and kidney's, resulting in failure of the organs (dropsy). However it's great to have on hand and works wonderful for curing those illnesses that I spoke of
And as far as your products go, Aqua Culture and the Tetra AquaSafe do the same things so you use one of them each time that you do a water change. So say that you take out 5 gallons of water (half of your 10 gallons) and you want to put 5 gallons back in, you use the correct amount of drops/capful for 5 gallons of water which makes it safe for your fish. Without conditioner there are things both in tap water and Spring water which are bad like chlorine (not present in Spring water), heavy metals and sometimes ammonia (as is in your tap) and so conditioner will detoxify these things making it safe for your fish!
I wouldn't use the Jungle lifeguard unless you have a serious illness that you need to cure, otherwise you'd just be stressing your fish out, so just hold onto it for now
And then the Jungle Ammonia tablets do very similar to the other two conditioners where it makes tap water/spring water safe for fishes. It also helps turn the ammonia into ammonium just like what Prime by SeaChem does so you can choose to use that only since you do have ammonia in your tap or you can disregard it.
And then the Tetra EasyBalance, I wouldn't suggest using that since it tampers with your pH level. Even if you have a higher pH level coming from your tap, your Betta's can adjust to it with proper acclimation.
If you need to know how to successfully acclimate your new Betta's for when they first arrive at your home, I can tell you about that as well.
But as far as your purchases go I would just use the Tetra AquaSafe and not worry about the ammonia in your tap. Once your cycle gets finished you'll never have to worry about buying spring water again
Let me know if you need help with the cycling process as well