Canreef Aquatics Bulletin Board  

Go Back   Canreef Aquatics Bulletin Board > General > Tank Journal

Reply
 
Thread Tools Display Modes
  #1  
Old 09-21-2013, 06:01 AM
Blind River Joe Blind River Joe is offline
Junior Member
 
Join Date: Oct 2012
Location: Richmond, BC
Posts: 7
Blind River Joe is on a distinguished road
Default Water Changes

Hello:

Just looking to see what other people out there do for water changes. I have a 250 gallon tank and I change 40 gallons of water per week. I don't have a huge bio load. My sump is 70 gallons with a skimmer. I have 250 lbs of live rock. I have a Tunze wave maker and all soft corals. Currently all water parameters are in range. The reason I am posting this question is I have been told that I change my water too often and too much. I am considering changing 20 gallons every week instead of 40. Any thoughts would be appreciated.
Reply With Quote
  #2  
Old 09-21-2013, 06:08 AM
mrhasan's Avatar
mrhasan mrhasan is offline
Member
 
Join Date: Jun 2012
Location: Calgary
Posts: 2,893
mrhasan is on a distinguished road
Default

Thats a lot of wc for such a big tank with softies! I do 10 gallon once every two week for my 70 gallon and I have a very bad habit of overloading my tank
__________________

You wouldn't want to see my tank. I don't use fancy equipment and I am a noob
Reply With Quote
  #3  
Old 09-21-2013, 06:26 AM
gregzz4's Avatar
gregzz4 gregzz4 is offline
On Hiatus
 
Join Date: Oct 2011
Location: Burnaby, B.C.
Posts: 4,890
gregzz4 will become famous soon enough
Default

Do you know what your total system volume is ?
10% per week is a good starting point to see how things go

Lets say for argument's sake that your 250g holds 200g after rocks sand overflows etc, and your 70g sump holds 50g after baffles etc
So, for my arguement, we'll say your total system volume is 250g
You could do 25g WCs per week and all is good ...

If you can, try to figure out what your total system holds
It's good to know this, especially if you need to dose stuff
Reply With Quote
  #4  
Old 09-21-2013, 06:32 AM
Blind River Joe Blind River Joe is offline
Junior Member
 
Join Date: Oct 2012
Location: Richmond, BC
Posts: 7
Blind River Joe is on a distinguished road
Default

Good point I did not put my total system volume in the original post. The TSV including sump is 205 gallons. I have around 190LBS of live rock, deep sand bed etc. I can't say that there is any thing wrong with my tank and I don't want to be cheap but if I could cut the water changes down from 40 gallons to say 20 it would be nice. Thanks for the reply.
Reply With Quote
  #5  
Old 09-21-2013, 06:50 AM
gregzz4's Avatar
gregzz4 gregzz4 is offline
On Hiatus
 
Join Date: Oct 2011
Location: Burnaby, B.C.
Posts: 4,890
gregzz4 will become famous soon enough
Default

So you can cut your changes down to 20g/week and save lots of water/salt
Keep an eye on your ALK/CA readings as it will change with the lack of new salt water
Reply With Quote
  #6  
Old 09-21-2013, 10:21 AM
Spyd's Avatar
Spyd Spyd is offline
Member
 
Join Date: Jul 2011
Location: Kitchener, ON
Posts: 188
Spyd is on a distinguished road
Default

With such a large tank, you could easily drop down to bi-weekly water changes. I do 40G water changes bi-weekly on my heavily stocked 180g SPS tank. 40G bi-weekly, for your setup, should definitely be enough.
Reply With Quote
  #7  
Old 09-21-2013, 10:52 AM
Aquattro's Avatar
Aquattro Aquattro is offline
Just a guy..
 
Join Date: Aug 2001
Location: Victoria, BC
Posts: 18,053
Aquattro is a jewel in the roughAquattro is a jewel in the roughAquattro is a jewel in the roughAquattro is a jewel in the rough
Default

Quote:
Originally Posted by Spyd View Post
With such a large tank, you could easily drop down to bi-weekly water changes. I do 40G water changes bi-weekly on my heavily stocked 180g SPS tank. 40G bi-weekly, for your setup, should definitely be enough.
Agreed. You'd be better doing 40g every other week instead of 20/wk. I do 50g /biweekly and I'm satisfied with that.
BTW, you can't change too much water You can spend too much money doing it, but bigger water changes are never bad.
__________________
Brad
Reply With Quote
  #8  
Old 09-21-2013, 11:07 AM
Dearth's Avatar
Dearth Dearth is offline
No Cookies
 
Join Date: Aug 2012
Location: Prince George
Posts: 1,296
Dearth is on a distinguished road
Default

In my 95 gallon I do a 14 gallon water change bi-weekly with no issues with corals or livestock.
__________________
My aquarium is nothing but a smorgasbord for my cats.....
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT. The time now is 11:10 PM.


Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.