Tom recommended adding Scott's ground peat to the substrate of a non CO2 tank. Checking my local nurseries and HD, I was not able to find any. I called Scott's, they stated that Scott's had merged with Miracle Gro, and they did have it, but upon checking further, I discovered that the peat was enhanced, which is not what I think we want. Any suggestions as to who produces ground peat and where it can be purchased? :gw