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Multiple filters on one aquarium

This is a discussion on Multiple filters on one aquarium within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> You can always just leave the old filter media in the tank without the filter, might be a better fit. Jeff....

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Multiple filters on one aquarium
Old 07-13-2013, 03:11 PM   #11
JDM
 
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You can always just leave the old filter media in the tank without the filter, might be a better fit.

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Old 07-14-2013, 12:45 PM   #12
 
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I had a 10i for a while. All you need is the "cloth" that is over the plastic rectangle thingie.. sorry for the technical terms.. LOL

You can cut it with a sissor to get it off if need too and then just lay it over the new filter pad. I did this from my 10I to my quietflow 30 .. infact the old one is STILL IN THERE after over a year. Youd just toss the hard plastic thing that the cloth sits on and the carbon that's inside.

I just recently used my sponge on a QT tank that had a very sick fish in it. The fish didn't make it so I sanitized the QT and decided to toss the sponge filter just incase some stuff got into it I didn't want to xfer back to my main tank. my main tank now had 10 gallons or so of less filtration so I booted up my 10i again and put a knee high pantyhose filled with Substrat pro (Eheim, like the ones for aquaclear) and now it's running in my 29 LOL .. filters are a motor and a box with stuff in it. What that stuff is, is your choice.
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Old 07-17-2013, 01:47 PM   #13
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Hello Folks;
Not to confuse issues but having two filter would offer heterotrophic bacteria an advantage over the more desirable autotrophic bacteria. The competition between the two bacteria for surface area could limit or eliminate the effectiveness of autotrophic nitrifying bacteria. The principle limiting factor controlling populations of heterotrophic bacteria is the availability of organic carbon that comes from fish poo and excess food. where is this organic carbon found in quantities in the filter media with the heterotrophic bacteria Ö. Autotrophic bacteria is mostly in the substrate,.

caution: just because I have an opinion isnít proof I know what I am talking about!

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Old 07-17-2013, 05:14 PM   #14
 
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Originally Posted by pop View Post
Hello Folks;
Not to confuse issues but having two filter would offer heterotrophic bacteria an advantage over the more desirable autotrophic bacteria. The competition between the two bacteria for surface area could limit or eliminate the effectiveness of autotrophic nitrifying bacteria. The principle limiting factor controlling populations of heterotrophic bacteria is the availability of organic carbon that comes from fish poo and excess food. where is this organic carbon found in quantities in the filter media with the heterotrophic bacteria Ö. Autotrophic bacteria is mostly in the substrate,.

caution: just because I have an opinion isnít proof I know what I am talking about!

pop
Perhaps you can expound on this - then we shall see if you know what you are talking about

How would having 2 filters offer one bacteria an advantage?

How is the competition for surface area any different with 2 filters versus 1?

If autotrophic bacteria is in fact primarily in the substrate, how do the filters have any impact on that? And how is there competition for real estate if one prefers the filter and the other the substrate?


I think that there is a point at which theory loses practicality, and in my opinion this is a perfect example. I think that this "greater understanding" about the ins and outs of the bacteria is largely irrelevant to the vast majority of keepers and their tanks. It may be 100% correct, or maybe it's not - I don't know. However, one thing of which I am certain is that whichever the case may be, it will make absolutely no difference to my fish tanks or how I keep them. I run multiple filters on each tank - I don't have any issues with ammonia or nitrite. Really, that's all that matters - 0 is 0. Keeping fish can be as easy or as difficult as we want to make it for ourselves. There's nothing wrong with getting lost in the science - we are all in the hobby for our own reasons, though they can vary greatly from keeper to keeper. But at the end of the day, what's most important is 0 ppm ammonia and 0 ppm nitrite. Fish keeping is not rocket science and nature needs no direction from us.
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Old 07-17-2013, 06:05 PM   #15
 
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F


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Old 07-17-2013, 08:51 PM   #16
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Given that the surface area of just the glass of a tank can support an active and effective nitrogen cycle, I fail to see how there is any sort of competition for surface area whatsoever, particularly if we add substrate, filters etc. which will serve to increase the available surface area by at least four fold and add a level of efficiency due to the movement of the water.

Competition is less the issue than straight up availability of nutrients and, for the most part, ammonia and nitrites will be evenly distributed throughout the water volume. The organisms will propagate up to the point where supply and demand are balanced... which organisms they might be and where they decide to take up residence is of little importance. Even scientific studies have a hard time determining which ones are present where and in what ratios let alone us trying to figure it out in our aquariums.

I like Jaysee's zero is zero as that does sum it up.

I also like getting into the science of it, to a point, and figuring out minimal applications or breaking something down to its simplest functional form. In that vein I have been playing with the glass container cycle for the last month and change. More tinkering left yet... its not going to include fish though.

Jeff.
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Old 07-17-2013, 08:51 PM   #17
 
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F


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Did you forget to finish typing or something?...

Or is it maybe my age has actually surpassed my ability to keep up with new communication slang
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Old 07-17-2013, 09:13 PM   #18
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Did you forget to finish typing or something?...

Or is it maybe my age has actually surpassed my ability to keep up with new communication slang
Hah... Q!

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Old 07-17-2013, 10:40 PM   #19
 
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hahaha.. Ws going to say something on my phone but was in the middle of cooking dinner and did't realize I hit send opps. Then thought better to stay out of this hahha

but I love the letter that made it through

In the less simplified version of my very eloquent original statement. I see no reason that I can make sense of that two filters could impeed on your bb growth.. It will be in two different areas but what does that matter? Is it any different then having a much larger HOB and added media? I am still running 0-0-0 on my two filter tank right now. Therefor whats the issue? or better yet "F" No idea where that letter was going hahaha
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Last edited by Agent13; 07-17-2013 at 10:59 PM..
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Old 07-18-2013, 05:08 AM   #20
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or better yet "F" No idea where that letter was going hahaha
Um, i can think of a few directions but NONE are suitable for the forum.... perhaps thats why you aborted the post.... or realized it was the wrong forum?

Two filters just acting as one larger filter.... probably as close an approximation of what would happen as any.

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