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Old 09-02-2013, 03:12 PM   #11
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The only thing you remove that is beneficial when too many pwc in a day is the bacteria. Although it can still be replenished after a while. You are also taking the risk of stressing your fish that may lead to parasites.
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Old 09-02-2013, 03:22 PM   #12
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Money isn't a issue but I am far from a baller.. I was not aware of that being able to stress my fish.. My specific gravity is maybe half a point away from being the same as my display specific gravity and I take in consideration the water cooling off before it goes into my tank so my to station is kept 3 degrees warmer than my tank since it will cool off during me emptying the old water.. I actually sucked a clown up into my siphon hose yesterday so I would prefer not to stress them out
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Old 09-02-2013, 03:36 PM   #13
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There is very little bacteria in the water column. It's all on surfaces. You won't hurt the bacteria colony by doing water changes.
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Old 09-02-2013, 03:43 PM   #14
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Which would be why I need to get my protein skimmer going right?
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Old 09-02-2013, 03:45 PM   #15
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Your protein skimmer will clean the water, but it's not going to remove bacteria. The bacteria Jeff is referring to is the kind you want in your tank.
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Old 09-02-2013, 04:00 PM   #16
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If you have good water circulation your good bacteria will be all over the place. If it is believed to be floating then your overflow will definitely suck it and spread them out. This is another reason why you use a portion of your salt water when upgrading to a bigger tank.
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Old 09-03-2013, 04:26 PM   #17
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I have never done that. I've just carried over the rock and that was enough. I would like to see some data on that if you can find it. I assumed bacteria spread, like algae would. I have heard of people doing 100% water changes with no ill effects.
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Old 09-03-2013, 05:05 PM   #18
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I've always heard that almost all of your BB is in the sand and live rock. Sure there is some in the water, but not much.

I'm going from a 75g to a 240g and plan to bring along the rock and sand (rinsed) and go 100% new water, as bringing the old water over brings nitrates too.
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Old 09-03-2013, 06:28 PM   #19
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Quote:
Originally Posted by TheTodd View Post
I've always heard that almost all of your BB is in the sand and live rock. Sure there is some in the water, but not much.

I'm going from a 75g to a 240g and plan to bring along the rock and sand (rinsed) and go 100% new water, as bringing the old water over brings nitrates too.
If you do that make sure that the pH and everything else is almost the same to reduce shock
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Old 09-03-2013, 08:01 PM   #20
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Worth reading if you haven't yet. A lot of science. You may be shocked as to how much free floating bacteria is actually in your water column.

http://www.advancedaquarist.com/2011/3/aafeature
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