You're totally right, heck its only been 30 mins since I posted this and already 8 replies :biggrin:

I'll find more stuff to post then :razz:

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

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 :p

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.

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 :lol:

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

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.

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

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.

Everybody's schedule makes me feel bad about mine. I havent done a water change(just top offs) for 5 months now. But I will be doing one this week since I need the established tank water for a new nano :)