09-16-2009, 12:23 AM
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well using peat pellets does effectivly lower your PH. However, note that it will stain your water a tea color, since it, like driftwood, uses tannins to lower your PH. You will also need to remember to remove the old pellets and put in new ones as the water slowly returns to clear. The peat will not give a PH shock as it will slowly leech tannins into your water and lower ur PH that way. Its not an instant drop in PH levels. Also, you may want to experiment with the amount of peat. Depending on your water chemistry, the peat may affect your tank a lot or very little.
A polishing pad is basically ultra fine mechanical filtration. It will help with water clarity, as it will filter out even smaller things that foam may miss. However, it doesn't do much else.