How often do you do water changes?

atrox · 04/20/2010, 07:04 AM

Water change frequency

thegrun · 04/20/2010, 07:24 AM

Weekly (10-15%) I have two Nano tanks, 28 and 12 gallons, so water changes are a must.

dunham16 · 04/20/2010, 07:30 AM

I do a 20% water change every 2 weeks

Flying_Hellfish · 04/20/2010, 07:31 AM

I do 10% weekly on my 55g.

floydie83 · 04/20/2010, 07:39 AM

weekly...~10%

moneytimetycoon · 04/20/2010, 07:41 AM

x4 on the weekly. I have a 40 with a skimmer but I still go weekly.

mcoomer · 04/20/2010, 07:45 AM

10-15G on a 125G every weekend.

mfinn · 04/20/2010, 07:48 AM

I do my water changes without fail every 2 weeks.

Kfig7 · 04/20/2010, 08:11 AM

20% weekly on my 75 gallon. I may go to every 2 weeks as its getting expensive buying all this salt.

chrisp074 · 04/20/2010, 10:28 AM

Every Monday night.

DevilBoy · 04/20/2010, 10:29 AM

20 gallons every weekend.

75oceanic86 · 04/20/2010, 10:45 AM

Maybe 15% every six months. Other than that i just top off. Been working well for me for over a decade

gofor100 · 04/20/2010, 10:48 AM

Every Thursday night about 10%... mainly because if I did it every other week (which I could probably get away with), then I wouldn't be on such a set schedule and would be more likely to miss a week and start extending it to every 3 weeks, and then maybe 4 weeks, and so on.

Plus, since I don't really dose what I can't test (I only supplement Calcium, Alkalinity, and Magnesium), I find that doing small water changes more frequently helps with maintaining any "trace elements" I don't test for, and thus, my corals are all doing great.

bmbrown · 04/20/2010, 10:49 AM

Usually do 10-15% every two weeks

TotalVapor · 04/20/2010, 11:19 AM

About 10% every two weeks on my 400 gallon system. If I do any more my corals freak out. Some will start showing RTS at the base if I do weekly changes.

I have been told this is caused by my salt mix and I am currently looking to start using a different mix once I use the 5 cases I have left from my bulk buy.

KMUNCC · 04/20/2010, 11:22 AM

weekly and try to do 10% if possible. If it is possible for you to do more that is even better!

crazy4reefs · 04/20/2010, 11:38 AM

25% every 6 weeks

Namnuta · 04/20/2010, 12:50 PM

15% weekly

sslak · 04/20/2010, 12:53 PM

~10% weekly

thebkramer · 04/20/2010, 12:54 PM

10% every Wednesday

captnslapy · 04/20/2010, 12:58 PM

about 10 gallons on my 55 reef every 10 days.

rogersb · 04/20/2010, 01:08 PM

10 gallons weekly on a 60-70g system. My sump is an old one with a crappy skimmer run off a wooden airstone, so I figure the more the better as I'm not pulling out nearly as much as others.

jdthomas24 · 04/20/2010, 03:13 PM

HMM- most are saying weekly. why so often? is it to keep up with calcium and alk? If so then you couldn't do enough to keep up unless you have hardily any corals. I do 25 gallons at the first of the month on a 150. water is clear and coral are happy. dose alk and calc. 2 part

sslak · 04/20/2010, 03:25 PM

Quote:

Originally Posted by jdthomas24

HMM- most are saying weekly. why so often? is it to keep up with calcium and alk? If so then you couldn't do enough to keep up unless you have hardily any corals. I do 25 gallons at the first of the month on a 150. water is clear and coral are happy. dose alk and calc. 2 part

1. I find it easier to do a 5 gallon change every weekend than a 25 gallon change ever.

2. I feel it's more about nutrient export than keeping up on Ca/Alk, although I feel it may keep the trace elements a little more stable using a higher frequency of changes.

3. (MOST IMPORTANT) If I skip weeks it becomes less routine and someday I'll be sitting around wondering "when was the last water change I did, 3 weeks...5 weeks?" and "where did all this hair algae come from?"

garygonzales · 04/20/2010, 04:35 PM

20% every month here

04/20/2010, 07:04 AM	#1
atrox Registered Member Join Date: Jul 2008 Location: San Angelo, Texas Posts: 574	How often do you do water changes? Water change frequency

04/20/2010, 07:30 AM	#3
dunham16 Registered Member Join Date: Apr 2005 Location: connecticut Posts: 259	Re: How often do you do water changes? I do a 20% water change every 2 weeks

04/20/2010, 07:48 AM	#8
mfinn Registered Member Join Date: Apr 2002 Location: Olympia. WA. Posts: 8,648	I do my water changes without fail every 2 weeks. __________________ 240 gallon soft coral tank 50 gallon lps tank

04/20/2010, 10:29 AM	#11
DevilBoy Registered Member Join Date: Apr 2004 Location: Wooster, Ohio Posts: 1,724	20 gallons every weekend. __________________ Bare Bottom 90g AGA RR. 2 AI Sol Blue LED Fixtures, SWC 160 cone skimmer. 2 MP40W ES Vortech pumps, 1 MP10W ES Votech pump, Digital Aquatics Reefkeeper Elite, Tunze 1073 internal return pump. 30g custom acrylic sump with refugium. Current Tank Info: 90g AGA RR, custom 30g sump

04/20/2010, 10:48 AM	#13
gofor100 Registered Member Join Date: Nov 2003 Location: Southern California Posts: 3,225	Every Thursday night about 10%... mainly because if I did it every other week (which I could probably get away with), then I wouldn't be on such a set schedule and would be more likely to miss a week and start extending it to every 3 weeks, and then maybe 4 weeks, and so on. Plus, since I don't really dose what I can't test (I only supplement Calcium, Alkalinity, and Magnesium), I find that doing small water changes more frequently helps with maintaining any "trace elements" I don't test for, and thus, my corals are all doing great. __________________ "FISH ARE FRIENDS, NOT FOOD" Current Tank Info: Tank Build in Progress

04/20/2010, 07:24 AM	#2
thegrun Registered Member Join Date: Dec 2008 Location: Garden Grove, Ca Posts: 17,023	Weekly (10-15%) I have two Nano tanks, 28 and 12 gallons, so water changes are a must.

04/20/2010, 07:31 AM	#4
Flying_Hellfish Registered Member Join Date: Dec 2009 Location: Aurora, IL Posts: 253	I do 10% weekly on my 55g.

04/20/2010, 07:39 AM	#5
floydie83 Registered Member Join Date: Feb 2010 Location: Lawrence, KS Posts: 287	weekly...~10%

04/20/2010, 07:41 AM	#6
moneytimetycoon Registered Member Join Date: Jan 2010 Location: Antioch, CA (The Lesser East Bay) Posts: 123	x4 on the weekly. I have a 40 with a skimmer but I still go weekly.

04/20/2010, 07:45 AM	#7
mcoomer Rat Bastard! Join Date: May 2007 Location: Sammamish, WA Posts: 1,487	10-15G on a 125G every weekend.

04/20/2010, 08:11 AM	#9
Kfig7 Registered Member Join Date: Feb 2010 Location: NJ Posts: 136	20% weekly on my 75 gallon. I may go to every 2 weeks as its getting expensive buying all this salt.

04/20/2010, 10:28 AM	#10
chrisp074 Registered Member Join Date: Oct 2002 Location: Aurora Il Posts: 351	Every Monday night.

04/20/2010, 10:45 AM	#12
75oceanic86 Registered Member Join Date: Nov 2005 Location: long island Posts: 64	Maybe 15% every six months. Other than that i just top off. Been working well for me for over a decade

04/20/2010, 10:49 AM	#14
bmbrown Registered Member Join Date: Apr 2009 Location: VA Posts: 7	Usually do 10-15% every two weeks

04/20/2010, 11:19 AM	#15
TotalVapor Moved On Join Date: Feb 2010 Posts: 94	About 10% every two weeks on my 400 gallon system. If I do any more my corals freak out. Some will start showing RTS at the base if I do weekly changes. I have been told this is caused by my salt mix and I am currently looking to start using a different mix once I use the 5 cases I have left from my bulk buy.

04/20/2010, 11:22 AM	#16
KMUNCC Registered Member Join Date: Oct 2006 Location: Woodleaf, NC Posts: 61	weekly and try to do 10% if possible. If it is possible for you to do more that is even better!

04/20/2010, 11:38 AM	#17
crazy4reefs Registered Member Join Date: Nov 2006 Location: 18411 Posts: 219	25% every 6 weeks

04/20/2010, 12:50 PM	#18
Namnuta Registered Member Join Date: Jan 2009 Posts: 82	15% weekly

04/20/2010, 12:53 PM	#19
sslak Registered Member Join Date: Aug 2005 Posts: 1,705	~10% weekly __________________ Steve Current Tank Info: 58 Oceanic/20g Sump/250w XM 20k/2x39w T5 True Actinic 03/2010 Reef Octopus NW Cone Skimmer

04/20/2010, 12:54 PM	#20
thebkramer Registered Member Join Date: Nov 2009 Location: Clifton Park, NY Posts: 3,198	10% every Wednesday __________________ Rhonda There is NO such things as Dumb Questions!! There are However.. Dumb Answers!!! ;) ____________ Current Tank Info: 55g reef....Current Orbit SunPaq Lights, HOB Eshopps, HOB AquaClear 110, 2-1400 Koralia Powerheads & 1 Nano Koralia, 40+ lbs LR, 2" LS

04/20/2010, 12:58 PM	#21
captnslapy Registered Member Join Date: Mar 2010 Location: Vermilion, Ohio Posts: 427	about 10 gallons on my 55 reef every 10 days.

04/20/2010, 01:08 PM	#22
rogersb Registered Member Join Date: Mar 2008 Location: white haven Posts: 1,135	10 gallons weekly on a 60-70g system. My sump is an old one with a crappy skimmer run off a wooden airstone, so I figure the more the better as I'm not pulling out nearly as much as others.

04/20/2010, 03:13 PM	#23
jdthomas24 Registered Member Join Date: Nov 2009 Location: Rockwall, Texas Posts: 852	HMM- most are saying weekly. why so often? is it to keep up with calcium and alk? If so then you couldn't do enough to keep up unless you have hardily any corals. I do 25 gallons at the first of the month on a 150. water is clear and coral are happy. dose alk and calc. 2 part

04/20/2010, 04:35 PM	#25
garygonzales Registered Member Join Date: Feb 2006 Location: WEST ALLIS ,WI Posts: 922	20% every month here

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