Hello all, I have a question again. As most of you know I have a 90gallon with the sump filter now. It’s running with the filter sock which I replaced every three days with a washed out one. In the filter sock I have a few packs of certain media. The guy at the local aquarium fish store recommended these media packs for my Discus aquarium. I couldn’t even tell you the name of them. But I’m wondering what you guys use. I want my Discus aquarium to be soft and acidic and the right and best water quality. Do you guys have any suggestions or filter media especially for discus that I can add to my sunk filter that would benefit my Discus? Any help would be greatly appreciated thank you for your time.