I think the folks are
answering your question.
This is not just about money.
As far as answering your question, I thin the Hong Kong saleman already "answered" your question.
So why not ask them rather than ask here?
They'll tell you what you want to hear rather than the truth.
Your goal is not ADA ferts, rather, reduced growth rates.
At least that is what you are telling us.........and reducing the rate of growth via light, will improve the abnormal growth, mostly from reduced CO2 demand which is tougher to dial in good at higher light. I only get abnormal growth when I mess up the CO2, ADA is no different. It's not due to the ferts in and of themselves, I have not such issues and have shown this for decades.
This is NOT a fert question, this is a plat growth question which is far more than a simple 1 part answer with respect to nutrients. Nutrients are not the end all to everything plant growth, which is why I mentioned the ADA 180 at AF as an exmaple. The dosing of ferts is the same(easy to do), but the results are not. Likewise, EI ferts in the pics above show no issues with plants/algae as well. We can only conclude that other factors than ferts are the causes for such issues.
Is this agreed?
ADA, and Aqua Forest etc use LOW lighting.
They also use rich sediments, eg ADA aqua soil. That's where most of the nutrients come from along with some from the fish waste.
This is an easy method because of low light, not because of low nutrients/ADA liquid ferts etc.
I am not some Hong Kong guy trying to sell you ADA either
I get nothing out the help I am offering.
Why not think about that? What do I have to gain?
What do they gain by suggesting a DIY product that they cannot make $$$ on? ADA? That's why they market things, put a nice little poem and nice box and push a perception. Why? Because folks fall for it. Even when the option to save a lot of $ exists.
Faith vs fact.
BTW, I already did a full chemical analysis for liquid brighty series ADA ferts.
I know what is in them.
I know they are not going to save you or reach your goal. What will happen is they will try to sell you other products as that part alone will not help you reach that goal.
The ADA ferts work well when you have low light, good CO2, and do good frequent water changes AND...........ADA AS etc. And even then, as you can tell from even a top scaper that uses ADA only........can have less than perfect results even in the best cases.........
That is not solely a nutrient issue.
As EI clearly points out.
Now you can, as suggested by several folks more in the know, can simply lean up EI, EI is not written in stone, it's more just a concept than a particular dosing method. Many use it leaner and for an ADA tank with low light, cutting it by 1/2 , and with a good fish load, maybe even lower, is fine.
Do you have ADA AS?
That is important because that is a huge massive source of nutrients, that+ low light is how ADA gets away with very lean water column dosing.
Yes, the metal inlet pipes are nicer IMO, I've never broken one yet unlike the lily pipes. I do not like the round globe Do! ADA pipes at all, the narrow ones and the older ones give better flow and mix the CO2 better.
I think you'll do far better to reduce the light. This will reduce growth rates and be far more stable than any other possible method you might come up with. BTW, I've measured 8 different ADA lighting systems and they are all low light. You need to understand that otherwise you will continue to have issues.
Details as far as the sediment are also important if anyone is going to give you advice as far as ADA liquid ferts.
Plenty of folks get the results they desire without ADA liquids ferts and many use ADA AS with EI(like myself).
It's not the method that fails, it's us
These are common sense factors that are measurable and that we can see from basic plant growth physiology, it all starts with light which drives CO2 demand which drives nutrient uptake.
Of these, light is the most stable and gives you beautiful results regardless of the method of dosing. Want faster growth: add more light, more CO2 more nutrients. Less growth: less light, good CO2 and good nutrients.
I'm not telling you what to do with your money, that's the ADA folk's job. I'd rather educate folks more about general principles which is far more useful to the hobbyist. Then they can make their own informed decisions, use their reasoning and buy what they need to achieve their goals.
Then they can also better help others that are coming into this hobby.
Which is all the intent here is about thus far from everyone.