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how often should you do maintenence

H. lunulata

O. bimaculoides
Registered
Joined
Mar 19, 2005
Messages
65
#1
hi how often should you change the water in an octo tank. i heard once a month is fine but need a second opinion on that one especially how often would you have to change the water if the octo is in a 24gal nano aquarium with a 290gph.
 

cthulhu77

TONMO Supporter
Supporter
Joined
Mar 15, 2003
Messages
6,642
#2
In that small of a tank, you are looking at at least once a week...which is one of the reasons most of us prefer a larger tank, it gives you some more breathing room...still, you need to do water changes around twice a month or more.
greg
 

Colin

TONMO Supporter
Supporter
Joined
Nov 14, 2002
Messages
3,986
#3
I agree with Greg, your tank is on the small side (most probably too small for a ceph!) and about 25% per week w/c
 

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