Ladykrup
Aquarium Advice Apprentice
I am ready to do a partial water change. The pH has dropped a bit and I know it is time. (55 gallon tank). I will have to change a good chunk of the water since this is the first time and I have waited probably longer than I should have. Will I need to turn off the filter? If I take out 10-20% of the water (assuming there are about 40 gallons in there with the rocks and all) the water will no longer flow into the overflow box. Do we shut it down, siphon out, replace with our new water, and turn it back on? Now I am beginning to understand the benefit of doing it every two weeks, seems like there would be less water to fool with. Thanks for the help!