yehh i have the same problem. i bought malasyian wood in january and i boiled for 1/2 hour it and soaked it for like a week and the tannins still never came out.what do i do??? is the black carbon supposed to take out the tannins?
Ok chris got it, ta, You said "I would need to change the carbon on a regular basis" if I was to keep it in the filter, I take it from your last reply that it should be changed when the water starts getting cloudy again ? or is there another tell tell I need to look out for?
Sorry to keep on but if I don't ask I will never know for sure.
Thanks Clint.