How much water do you change every week?

[ct-death]

90G - 40% every 7-9 days // 60-75% once a month
30G - 50% 7-9 days
10G - 75% 7-9 days

...all with Vacs obviously...

[EDIT] Forgot, when I have a QT up I do 100% every 3 days (unflitered), over 80% weekly if filtered

 

[Bethany1979]

yeah Beth,

I'm just not buying it. I taught a semester of environmental geography at a University and have studied enough of it to know that the water that goes down your drain doesn't simply recycle through your system and end up coming back out of your faucet.

I think thats something people like to tell themselves to feel better about 20 minute showers and high flow toilets

Everyone is entitled to their own opinion.

 

[nahrie]

I have a 37 gallon, a 10 gallon, and a 3 gallon. All of them get a 10% wc weekly. I test right beforehand, and if anything is off (or just looks particularly grungy), I change 20% instead, and daily thereafter until everything is normal.

 

[dirtydawg10]

75 gal - 50% weekly
29 gal - 30% twice a week
20 gal tall - 25% twice a week
20 gal long - 25% every other day
10 gal - 50% weekly

 

[nahrie]

Which brings me to my scientific question - IS there any way to recycle tank water???

Water your plants! Other than that, not a clue. But I haven't had coffee yet. LOL

 

[fishorama]

I try to do 20-25% twice a week (75g, 55, 29 & 2 20) but if I miss 1 I do 35-40% except for 10g shrimp 35-50% once a week & Qt/fry, 20-30% every 2-3 days

 

[kreesdqban]

yeah Beth,

I'm just not buying it. I taught a semester of environmental geography at a University and have studied enough of it to know that the water that goes down your drain doesn't simply recycle through your system and end up coming back out of your faucet.

I think thats something people like to tell themselves to feel better about 20 minute showers and high flow toilets

I agree its just not that simple. If it were us in South Fla wouldnt have water shortages every so often...

 

[stasia8756]

About half, but if I really want to make it quick all I do is remove half the water and put the fresh back in. No vacuuming. I don't vacuum my planted tanks too much anyway but the artificial ones sometimes have to go without the vac if there are time constraints.

 

[NoExit]

yeah Beth,

I'm just not buying it. I taught a semester of environmental geography at a University and have studied enough of it to know that the water that goes down your drain doesn't simply recycle through your system and end up coming back out of your faucet.

I think thats something people like to tell themselves to feel better about 20 minute showers and high flow toilets

Most municipal water treatment plants treat sewage and then discharge the water to a lake or river. There are a few (I think there's one system in southern California) that does treat wastewater and put it back into the drinking water supply. So I guess you guys are both kind of correct.

But as far as wasting water, it's nowhere near as bad as watering your lawn. It's reccomended that you water your lawn one inch of water a few times a week. That ends up being over 6,000 gallons for a 100' x 100' lawn each time! Not to mention what kind of impacts fertilizers have on surface waters.

There's also the aspect of the quality of the water we discharge when we do water changes. Most surface water quality standards are written with the health of fish, plants, and inverts being the goal. Since that's what we do for fun, we're putting out exactly what they're trying to acheive in treating waste water.

Sorry for the novel.

 

[NeonFlux]

60 Gallon 50-60% weekly
10 Gallon Celestial pearl danios tank 50% weekly
10 Gallon Ember tetras 50% every two weeks
10 Gallon Quarantine, unneeded fishstock 50% weekly
20 Gallon 50% weekly