PDA

View Full Version : water changes- how often?


palyam
07/01/2010, 06:45 AM
Most of us are performing them, some do 10% a week, and some 10% a month. I'm sure that the right timing is different, so my question is how often should we perform them, and how much we should change every time for optimal results?

For example, I have a 65 gal reef, heavily loaded.

thx :thumbsup:

HighlandReefer
07/01/2010, 07:31 AM
Most hobbyists change out around 30% per month. Smaller water changes performed more often will have less impact on your occupants.

Randy provides more details in this article:

Water Changes in Reef Aquaria
http://reefkeeping.com/issues/2005-10/rhf/index.php

ms123
07/01/2010, 07:38 AM
I have a 90 gallon and I change 5 gallons a week pretty regularly. I also do the wet skim when doing water changes.

mike_cmu04
07/01/2010, 09:10 AM
I would do them at least bi weekly but even better do them weekly and do 10 percent

tmz
07/01/2010, 10:05 AM
Debates on this can be endless. FWIW I subscirbe to the smaller more frequent is better school. Just seems like there is less risk of upsetting balances in the system. I change 1% daily with additional changes up to about 5% periodically related to maintenance for a total of about 40% per month.

bertoni
07/01/2010, 03:39 PM
I agree that small daily changes are great, but they would require automation, in my case, because I'm lazy.

For a heavily-loaded 65g system, if you were to do 5g per week, I think that'd be very good. Less might be fine, but there's no data on which to base estimates, and tanks are likely to vary quite a bit.

Nakzter
07/01/2010, 03:46 PM
I perform a water change on my 75g+20g sump+5g fuge probably 10gallons every 2 weeks. I am not heavily stocked at all and I only feed once every 2 days. I set my skimmer on wet skim also and takes out probaby a full collection cup of dirty water every 24 hours.

2 small clowns
1 bicolor blenny
1 watchman goby
2 anemone's

new additions
Mandarin goby
Golden angelfish

tmz
07/02/2010, 10:14 AM
[QUOTE=bertoni;17317063]I agree that small daily changes are great, but they would require automation, in my case, because I'm lazy.

:fun2:

I'm too lazy to keep track and do larger changes. For me it's easier to change a bucket of water a day along with the morning feeding routine. I keep a 16 g bin of mixed sw going.