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How often do you change your water?

gregg

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How often, how much... and why do you do a water change?
 

Bullitt519

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Usually when I think the tank could benefit from it, adjust parameters if something happens, or I notice corals not looking so hot. Typically 10-20 gal on my 150 Gal of Total water volume.

Currently running, Filter socks, skimmer and fuge with cheato. Fuge light stays on 24/7 and I pull half a 5 gallon bucket of cheato every few months. RO/DI 10 Gal on ATO
 
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Tstew32

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Every Sunday 10 gallons on approx 90-100 gallons. I think it helps with nutrient export as I only run a fuge and skimmer.


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bpb

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Once a week. 12%

Then once every few months I’ll do multiple 20% changes over the course of a week or so


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sneezebeetle

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10% once a week with larger 20% changes abt every 6-8weeks right now. When I do the larger changes, I actually take first from my rtn and skimmer chamber on my sump since they tend to somehow accumulate crud that manages to escape my filter socks. I use my shop vac and just suck all the crud out.

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PorpoiseHork

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I typically do about 30% every other week. Mostly to replace trace elements since all I dose is calcium and magnesium and to a lesser degree help with nutrient export.
 

Tenny

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5g every week (90g system)

Then if things aren't looking great (like currently) I'm doing 10g a day for probably about a week.
 

Cody

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Normally, I change about 3% everyday via a stenner pump. Considering that I had a user error on my doser and dumped about a half a gallon of sodium nitrate solution into my take, I've done three 75 gallon changes on a roughly 250 gallon system since then. Nitrates are still higher than what my salifert can read, and it maxes at 100pm. Strangely enough, everything's still looking great.
 

GMay

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I do two 3.5 gallon water changes a week on my roughly 65 - 70 gallon system. I run a fuge with macroalgae for nutrient export and typically don't have measurable nitrates or phosphates. The water changes helps to add back microtutrients, but I also do dose some ( half the recommended amount) at each water change.
Happy Turkey day!
 

oguzman

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I don't water change ... Seems to work for now. I dose the red Sea a b c and d and so the icp tests a couple times a year.
 
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