Water Changes

I'm getting ready to do a partial water change in my 75 gallon aquarium today. I usually start by taking the entire top hood and light off the tank. While I have them off I'll siphon out about 25 percent of the old tank water. I mentioned in an earlier post that I had two sources of fresh spring water. When I get the water I put it in 1 gallon jugs about 2 days before putting it in the tank. A couple of reasons I do this is because for one the water is around 55 degrees and it would be to cold for the fish. Another reason is to give the water time to settle and oxygenate itself. At this time it is also a good practice to check and clean your filtering systems and siphon out any debris in the bottom of your tank. After you inspect everything start to slowly add the new water back in your tank and hook everything back up. You will instantly see a change in your fish behavior. They have more energy and are more playful.