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Question about sump media?

This is a discussion on Question about sump media? within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> Originally Posted by Sageo3000 all of your filter media is completely submerged? Yeah, it's all completely submerged in different sections of the sump tank, ...

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Question about sump media?
Old 05-27-2010, 07:04 AM   #11
 
Quote:
Originally Posted by Sageo3000 View Post
all of your filter media is completely submerged?
Yeah, it's all completely submerged in different sections of the sump tank, so the water flows over/under/through everything.


Does anyone know if I may have made a big mistake using tufa rock in my tanks?

I can't really find as much info on it as I would think there is, but it looks like it raises pH and or hardness or alkalinity or salinity?

I see places that say its good for freshwater, and places that say its bad, so now I'm kind of lost.


Thanks again.
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Old 05-27-2010, 03:18 PM   #12
 
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Quote:
Originally Posted by Castro235 View Post
Yeah, it's all completely submerged in different sections of the sump tank, so the water flows over/under/through everything.


Does anyone know if I may have made a big mistake using tufa rock in my tanks?

I can't really find as much info on it as I would think there is, but it looks like it raises pH and or hardness or alkalinity or salinity?

I see places that say its good for freshwater, and places that say its bad, so now I'm kind of lost.


Thanks again.
ammonia munching bacteria are highly aerobic so you'll need a lot of oxygen and a lot of surface area. You have a lot of surface area, but lacking in oxygen. of course there is dissolved oxygen in your water to begin with, but having a drip somewhere in the system is much more efficient. Think about adding a tray in the beginning of the system, as in, right after the output hose coming from the overflow. in the section under the tray, add as much media as you can, bioballs are great because of the mega surface area, and it creates spread out drip. put trays right after the output, one on top, on on bottom. bottom holds the biomedia out of the water, and the first tray, if there are holes in it, will spread the water out, increasing surface area.

your sump works as it is now, but you can always increase efficiency, creating less work for you and happier fish down the road.
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Old 05-27-2010, 04:43 PM   #13
 
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Originally Posted by Sageo3000 View Post
ammonia munching bacteria are highly aerobic so you'll need a lot of oxygen and a lot of surface area. You have a lot of surface area, but lacking in oxygen. of course there is dissolved oxygen in your water to begin with, but having a drip somewhere in the system is much more efficient. Think about adding a tray in the beginning of the system, as in, right after the output hose coming from the overflow. in the section under the tray, add as much media as you can, bioballs are great because of the mega surface area, and it creates spread out drip. put trays right after the output, one on top, on on bottom. bottom holds the biomedia out of the water, and the first tray, if there are holes in it, will spread the water out, increasing surface area.

your sump works as it is now, but you can always increase efficiency, creating less work for you and happier fish down the road.

Well, I'm not sure exactly what you mean by adding a tray, the way I have it now the overflow goes into the water about 2/3s down, in the first section which is filled with tufa rock, I drew a really bad diagram, but it's better than my description probably.

The blue line is the water level, the green pipe is the flow coming from the tank, and the entire section is filled with tufa rock just under the water level.

Would putting an airstone into that section to keep lots of oxygen in the water right where the bacteria is supposed to be help?
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Old 05-27-2010, 05:06 PM   #14
 
I also forgot to mention I have a large slow spraybar for the tank, it is from the return pump, so it's kind of far far away from the bacteria colonization, but I don't know if the slight aggitation of the surface would put much oxygen in the water, let alone enough to make it all the way back to the sump. It goes slmost half the lengh of the tank, but is a slow flow(I'm assuming because of it's size) so I don't know if it's really adding any oxygen at all.

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Old 05-27-2010, 05:49 PM   #15
 
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like this
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Old 05-27-2010, 06:49 PM   #16
 
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like this
Wouldn't this leave most of the media dry if the water level is that low and it's just water dripping down over it?

I wouldn't be able to use bio balls because of the price as well, but I would assume the same theory would be suggested with lava rock.

I don't know that i would be able to set that up with my current sump tank setup, it's actually a really abnormal system I set up in a 10 gallon tank, where the tank is divided into the four corners, I'll try to take a few decent pics, but since it's not cycled yet or anything this would probably be my best time to consider redesigning it. Maybe I'll just build a better sump tank setup out of a tote box.
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Old 06-01-2010, 05:13 AM   #17
 
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Well, the idea of a system like that is that the media is kept "wet" by having water constantly flowing over it, but is also exposed to a lot of air, which means there's a ton of oxygen available for use by the bacteria (the same sort of theory behind biowheels, for example).
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