Planted Tank Guru
Join Date: Jul 2011
Location: Christiansburg, Va
I'm going to test a container of tap water without water conditioner added, and a container with a small pouch of peat. I'll let both sit a few days before I actually test the water. We'll see if the peat lowers the ph. Should be interesting! If it works, I won't mind the color leaching out of the peat (I assume it will) because I love the tannin look to the tetra tank. I recently heard the term "balckwater tank" and I'm going to look it up...
Hmm, just found this, so I guess I was wrong about getting tea color from peat.
Blackwater is made by tannins, the substance that is released by driftwood, leaves, peat moss, and a variety of other natural substances. Oftentimes, many people strive to make their tanks sparkling clear and remove the tannins--this is done by boiling driftwood from 2-12 hours to remove most of the tannins from the wood so they will not heavily leach out into the tank water. However, probably the most effective substance in removing the tannins is carbon.
Needless to say, you must remove the carbon from your filter in order to make a true blackwater tank. (Sidenote: if you only want to lower your pH, add peat moss to your filter without removing the carbon and your water will not tan.)