The Planted Tank Forum - View Single Post - Switching to RO water
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post #1 of (permalink) Old 01-25-2003, 02:59 AM Thread Starter
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Join Date: Oct 2002
Location: Minneapolis, MN
Posts: 859
I am soon (this weekend) going to start using RO water for the 55 gallon tank. I was thinking about different ways to do this that all end up with the same end result. I am planning on using 1/2 RO water and 1/2 tap water, I really don't have the $ to do all RO water with my water changes...

I was wondering that if I empty my tank half way and then fill it up over a period of 3-5 days, would that be too much of a pH shock for the fish, and is it OK for the tank to run half-filled for a time? I definitely am not going to just replace it with RO in one "fill" since that would be a huge pH shock (my pH out of tap is above 8.5). Also, I am not going to do continuous water changes since it is less effective and I want to get the parameters changed safetly in the tank ASAP.


Tank in transition! 55 gallons, hard water.
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