Water changes sump or main tank?

rockethippo

AC Members
Feb 28, 2007
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Yukon Territory, Canada
when I do water changes do I do it with the sump or main tank?
 
Main tank uless you want to leave all the fish poo laying around.
 
Oh.. your saposed to brush up the sand.. lol speaking of sand do you always have to rinse it first?
 
caribsea aragamax sugar sized.
 
With RO water? Just put it in a pillow bag or something?
 
im guessing pillow bag = pillow case
 
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