Don't understand water change calc.

chvojka · 05/31/2006, 12:31 PM

Hey, Planning a set up 25gal tank 10gal sump I used the water change calculator but don't get what it's saying?

VoidRaven · 05/31/2006, 12:42 PM

The "general rule of thumb" (not that there are any hard-and-fast rules in saltwater) is 10% of system volume once a week or once every other week. I've heard of some folks changing out 20% to 30% once a month but those were advanced reef keepers. I try to do 10% every other week unless I can remember to do it once a week. My first year I changed out the water at 10% every week on the dot. Now that I understand my system more I slack off a little (I know, bad bad reefer!).

So, for your setup, I would say change out 4 gallons of water once a week.

jtemple42000 · 05/31/2006, 12:44 PM

You should be changing out 10% or inyour case 3.5 gallons every week

chvojka · 05/31/2006, 01:04 PM

Thanks for the info.

05/31/2006, 12:31 PM	#1
chvojka Registered Member Join Date: Feb 2006 Location: Michigan Posts: 86	Don't understand water change calc. Hey, Planning a set up 25gal tank 10gal sump I used the water change calculator but don't get what it's saying?

05/31/2006, 12:42 PM	#2
VoidRaven 'tis himself Join Date: Jun 2004 Location: York Township, OH Posts: 1,829	The "general rule of thumb" (not that there are any hard-and-fast rules in saltwater) is 10% of system volume once a week or once every other week. I've heard of some folks changing out 20% to 30% once a month but those were advanced reef keepers. I try to do 10% every other week unless I can remember to do it once a week. My first year I changed out the water at 10% every week on the dot. Now that I understand my system more I slack off a little (I know, bad bad reefer!). So, for your setup, I would say change out 4 gallons of water once a week. __________________ "If the women don't find you handsome, they should at least find you handy." - The Red Green Show Current Tank Info: 24g BioCube reef

05/31/2006, 12:44 PM	#3
jtemple42000 Premium Member Join Date: May 2006 Location: Granger, IN Posts: 416	You should be changing out 10% or inyour case 3.5 gallons every week __________________ Jim If anything absolutely can NOT go wrong, it will anyway. Current Tank Info: 210 in wall mixed reef

05/31/2006, 01:04 PM	#4
chvojka Registered Member Join Date: Feb 2006 Location: Michigan Posts: 86	Thanks for the info.