SPS Veterans, how often do you do water changes?

Fliger

New member
From all the SPS veterans, I'm just wondering -

How frequently do you perform water changes?
What percentage of the total system do you change?

I used to change about 15% monthly, but on my new system my goal will be 15-20% twice a month. Even with a good skimmer and other equipment, it seems like my SPS always appreciate the addition of clean water, I wonder if its more the trace elements of a good salt - more than the dilution of the pollution.

Thanks,

David
 
Read my sig:) I perform a 30g water change once a month (20%). This is on a 150g tank. My orp ranges from 380-410 without any additions of ozone or carbon. Fliger, where are those pics!!!!!!!!:D
 
i do a 5g waterchange before every topoff (twice a week) in 150g of total water volume.

thats like 7.5% a week, so 30% a month.
 
20% every week or so - I have a big mixing vat (300 gal) and it is easier to do more rather than less - end up buying salt 20 buckets at a time (but it lasts almost one year)
 
i dont know if i am a veteran or not...

i used to do about 25% every 2wks.... i have dropped back to 25% every 4-5wks... little happier now.
 
20-25 gals when I do em. I really have no set time to do water changes if the tank is doing good. I try to do one every month or two.
 
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