How often do you do water changes?

[pat]

I like too do 6gallon weekly,out of 40g total water volume.

[04scoobysti]

I do a 3-4g change weekly on a 20g Tank.

[Pier Pressure]

On a 28 gallon aquarium, we change out about 20% of the water weekly.

[Delphinus]

I try to do 25% once per month. Sometimes I let things slide. I'll have to check when I last did it (I write it down on a whiteboard in my basement) but I have a bad feeling it might have been February because I don't remember doing it in March. I guess there isn't much left in April, I better get on with it, thanks for nagging .. er .. reminding me

[Reefer Rob]

I change about 8% of my tank volume every week. It's all part of "tank bonding", can't wait to do my next water change, we've become so close my tank and me.

[marie]

I was doing bi weekly water changes but everything has been doing so awesomely well I haven't dared do anything for awhile so I checked off the "strange schedule that makes sense to me" option

[Chowder]

I do 15g a week on my 85 gallon total system and 15 gallon week on my 116 gallon total system at work.

[Ruth]

I checked off the strange schedule. I try to change about 20-25g once a week on my 110g cube (probably 150g total volume). I usually do my 2 nano's at the same time with about a 50% water change. On my 230g and 190g I am probably more at the 2-3 week interval.

[andresont]

I do 5% weekly on a 60 Gal tank, almost no sand left cleaning up the crud.

[Jaws]

I change 40G every month on a 180G tank. I try to do it every two weeks but it usually ends up being a month.