Sep 9, 2011 #1 herp_mommy Aquarium Advice Addict Joined Jan 3, 2008 Messages 1,656 Location GA, USA If I top off a saltwater tank, do I use freshwater? Because when the water evaporates the salt stays behind? Or do I use new saltwater?
If I top off a saltwater tank, do I use freshwater? Because when the water evaporates the salt stays behind? Or do I use new saltwater?
Sep 9, 2011 #2 adeebm Aquarium Advice FINatic Joined Jun 14, 2010 Messages 909 Location Woodbury, MN yep, use freshwater (ideally RO) to top off, otherwise you'll be slowly increasing the salinity. --Adeeb
yep, use freshwater (ideally RO) to top off, otherwise you'll be slowly increasing the salinity. --Adeeb