Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
In winter my tap water has more dissolved gases in it. So much that I lost fish from it.
So I started aerating the water. I use a fountain pump (200-300 gph) in a garbage can. The pump is in the bottom, middle of the can, aimed upward. This creates a strong flume of water that will out gas the excess pretty fast (easily overnight, and a couple of hours seems to be safe). I can also dissolve minerals in this for my hard water tanks, and I add dechlor at this time.
In summer I find a lot less problem with dissolved gases, but I still prep the water this way. The dechlor is well blended, minerals (when needed) are dissolved, and I can prep a lot of water to share among the tanks as needed. It just does not have to be aerated overnight. Half hour is enough, as long as the minerals are dissolved.