Having run a number of ADA AS alone and ADA AS+PS combos, I'ver failed to see any significant differences. Soime seem to suggest that it may help at the initial phase if you also do not add any macros, but if it adds macros, which is does, you can simply add some Osmocoat and KNo3, lots cheap and no mess with pulling the stuff up later when uprooting. Cost less too. Some folks wen to the trouble of using screening to keep the Ps from burping up.
Why bother if it does not help and cost a fair amount relative to KNO3 which I can add anyway? You need to get something significant out of it to warrant the cost and dealing with the two part sediments which are blackish and soft and the other , is white pumic and hard. It looks tacky.
The Tourmaline BC is just quackery ...........that's the best I can say about that stuff. The holistic quack market has been trying to sell it for all sorts of things:
Skin care quackery:
Shower heads, mattresses, water treatment: just listen to these hucksters:
Read that type of garbage......
ADA sells wine, do you think they are not above getting in the market when they also sell Penac as well?
I'm not saying everything ADA markets and sells works or not, nor are they all quack products, I am saying you need to see if the products are quackery and if they have some merit or not.
Some things obviously work, whereas others are dubious at best. some common sense and when listening to other folks claim that Touramilne or power sand is great, needed, etc, ask them if they have tried the product with and without and see if they found a difference that they could confidently say was due solely to that product.
I cannot for the PS or the Tourmaline BC.
I can however say that the ADA As is very good and use it myself.
But, I have tried both combinations and found the real factor was ADA AS in 4 tanks I used both on. Since, I set up several tanks and have not found any differences I could support where due to the Ps or the Tourmaline.
Now if someone wants to argue for the support of Tourmaline/PS, that's fine, but you need to have done a simple test: try it without the PS over time.
If not, you cannot say a darn thing because you have not tested it. Additionally, you need more than a single tank to see.
4 is not a lot, but it's enouygnb alogn with the other tanks I've done since without to convince me pretty well that there's not much if any ebenfit to PS/ or the tourmaline.
Adding what all's been marketed for tourmaline, seems ADA just got on board, tourmaline will not provide any significant nutrients to plants(it's rather insoluble for one thing- not bioavailable). Many minerals hold a charge, does not mean they do a darn thing. Glass, SiO2 is hardly a source of oxygen, but using the rational of some hucksters, they would like to sell you some based on your geologic ignorance of minerals.
It will not hurt your tank, so those with success due to good basic care, good CO2, light and added ADA As etc, can say they added it and suggest it's "needed".
But their methods do nothing to support that Tourmaline or PS are the reason for success.
Other things go into this and unless you test and bother with doing some rather simple treatments, with and without, aquarist cannot say anything other than they think it's nice, or they felt better adding it etc (Plenty that know better often try). I ask them if they tried it like I suggest, then they get mad and poo poo on me for asking common sense questions instead of trying it/testing it.
In reference to some folks, ADA AS can make a mess if you are a chronic re arranger of scapes, are not more careful uprooting, some batcxhes of ADA As have been pretty varied, some turned folk's water murky, some leached a lot more NH4 than we might expect for long time frames, but most worked great.
You need to do more water changes initially, often 2-3x a week for a month or two(@ 50%), but after than the product settles and things go well.
No rinsing needed, good cost relative to other commercial brands, nice look, excellent growth characters. So it has trade offs, but overall worth it for many folks.
I really would have a hard time in support of the other two products.