I do not mind helping if I could. Demjor...most any LFS, especially ones that can get oddballs, will have the stuff. Or you can go online to a supplier and get it. I bought mine shown below at a local LFS. It was cheap, like 4 bucks I think. I used the entire contents (treats 100 gallons/bottle) on this 220 gallon show tank 3 days ago. Notice the "slight brown hue" in the water? That is the tanins at work. It calms the fish by
1. reducing stress levels and all of the already mentioned positives.
2. Promotes a more"natural" habitat.
3. Contains trace elements, minerals and extract of peat that would ordinarily not appear in your aquarium.
4. IMHO, gives a warmer glow to the tank by slightly causing light to refract and bend around....hence a nice warm beautiful tank

.
It is good stuff. Bottled or dry leaf remedied. Hope this helps!
First pic was last week...before extract. Last 3 was as of tonight for reference