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07/12/2008, 03:33 PM
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#1 |
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Premium Member
 
Join Date: Feb 2008
Location: Columbus
Posts: 985
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How much water can I change in 24 hours?
Wanting to do some large water changes over the next week (100% total in a week?).
Basically wanting to lower nitrates down, and I want to know how much and how frequent I can do without harming the tank. 20% every 24 hours? |
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07/12/2008, 03:36 PM
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#2 |
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Registered Member
Join Date: Dec 2002
Location: Maumee, OH
Posts: 15,673
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I think that 20% every 24 is OK. Just note that you need to work on the source of nitrates and improve ways to export them. Although water changes will help reduce nitrates, you will soon be very frustrated just to see them climb back up in just a couple of days.
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Did I write what I wrote? What the heck am I talking about! Well..... Nevermind. Current Tank Info: 225 gal reef, DSB, 40 g sump w/ LRT100 return, 37 g pre-sump, 3 MH 250 W 15K, 4 96 W PC dual actinic,ETS 1500 Skim.w/LRT70, 20 lb Ca R., 40 W UV, 1/3 HP chiller, two 350 W Htrs, Neptune II Cont., 330 P LR/ 330 P LS. 55 gal Refugium |
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07/12/2008, 04:02 PM
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#3 |
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Registered Member
Join Date: Sep 2003
Location: southcarolina
Posts: 107
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Checked ammonia, 0 found
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bd Current Tank Info: 30 gal,liverock,whisper,powerheads |
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07/12/2008, 04:14 PM
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#4 |
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Registered Member
Join Date: Feb 2006
Location: Palatine, IL
Posts: 2,652
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Make sure to let your new water sit and stir so pH can balance out etc.. Do you have macro algae in the fuge to help use the nitrates? I've got RDSB or remote deep sand bed in a bucket that keeps my 75g at zero nitrates.
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07/12/2008, 04:35 PM
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#5 |
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Premium Member
Join Date: Feb 2008
Location: Columbus
Posts: 985
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I just installed my RO/DI. I've been using store bought which was testing pretty high (~20)
My tanks been pretty stable around 20 ppm, but I want to bring it down with the good stuff. |
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07/12/2008, 04:48 PM
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#6 |
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Registered Member
Join Date: Nov 2007
Location: N/A
Posts: 73
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20% water changes each day is fine to reduce your nitrates. The other thing to make sure is how much are you feeding your fish as over feeding can increase your nitrate and phospate levels. Another solution is to use Seachem denitrate as this helps or to setup a refugium.
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07/12/2008, 05:25 PM
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#7 |
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Registered Member
Join Date: Jun 2006
Location: St Louis MO
Posts: 4,222
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On my nano I have done back to back 50% wcs without any problems. The corals didn't like it for a few hours, but everything was fine. Doing daily 20% wcs will only slightly lower your nitrates.
Make sure to get your new water as close to the dt as possible.
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$35-50 for a <1" frag of some stupid named thing that came from a colony you bought for $40-60 wholesale and chopped into 20-40 pieces? No thanks. "JasonH" Current Tank Info: 125 aggressive reef, DIY led lighting, swc cone skimmer, 33 gallon sump, posiden Ps3 return. |
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07/12/2008, 07:21 PM
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#8 | |
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Registered Member
Join Date: Dec 2002
Location: Maumee, OH
Posts: 15,673
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Quote:
__________________
Did I write what I wrote? What the heck am I talking about! Well..... Nevermind. Current Tank Info: 225 gal reef, DSB, 40 g sump w/ LRT100 return, 37 g pre-sump, 3 MH 250 W 15K, 4 96 W PC dual actinic,ETS 1500 Skim.w/LRT70, 20 lb Ca R., 40 W UV, 1/3 HP chiller, two 350 W Htrs, Neptune II Cont., 330 P LR/ 330 P LS. 55 gal Refugium |
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