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Old 06-22-2013, 05:34 PM   #1
Jnad
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DSB experiment


Hello!

I have just started a 10 gallon low tech tank to see how the theory of deep sand bed works in freshwater tanks.

I have followed this web site:
http://www.wetwebmedia.com/ca/volume...e_7_1/dsb.html

The tank is a cube with dimmensions 30x30x35cm, the light is 2x9w 6500K led household bulbs that i have used sucsessfully on other planted tanks. The real power consumption of these leds are 5,5-6,0W on eatch bulb.

I have used pool filter sand with 0,4-0,8 grain size, i hope this will keep the sand not compacting.

The tank is housing 28 Mosquito Rasboras, 5 Cherry shrimps and one Octo.

For filteringi am using Matrix filter material, this will be removed as the tank mature, i am going to run this tank without a filter to test the DSB theory.

I will post some pictures of the tank in a couple of days.

Jnad
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Old 06-23-2013, 10:24 PM   #2
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Hello!

Here is a picture of the tank
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Old 06-25-2013, 09:44 AM   #3
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Hello!

Starting with diy co2 on the tank today, hoping for more bubbles though. Made the batch 12 hours ago, still only about one bubble pr 30 second Should it be more or should i just give it some time??

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Old 06-25-2013, 10:15 AM   #4
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I would add some Malaysian snails. Also you should occasionally poke the sand

DSB theory?

Last edited by Hilde; 06-25-2013 at 10:15 AM.. Reason: added
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Old 06-25-2013, 11:26 AM   #5
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Deep sand bed theory, and pokin the sand isn't a good idea in this instance if i recall.
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Old 06-25-2013, 03:58 PM   #6
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Isnt deep sand bed just for sw tanks with live sand?
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Old 06-25-2013, 09:23 PM   #7
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Quote:
Originally Posted by jamntoast View Post
Isnt deep sand bed just for sw tanks with live sand?
Follow the link in the first post, look like maybe it also will work in freshwater. I dont always belive what i read, therfore i will test it by myself. And i think it is fun and interesting testing somewhat unusual methodes

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Old 06-25-2013, 09:25 PM   #8
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Quote:
Originally Posted by Sake View Post
Deep sand bed theory, and pokin the sand isn't a good idea in this instance if i recall.
The Malaysian Trumpet Snails is already in there, there will be no poking of the sand bed

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Old 06-26-2013, 01:25 AM   #9
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Here is an interesting thread on DSB in a freshwater tank
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Old 06-26-2013, 09:15 PM   #10
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Quote:
Originally Posted by Hilde View Post
Here is an interesting thread on DSB in a freshwater tank
That was interesting, tanks
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Old 07-06-2013, 10:06 PM   #11
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Hello!


Here is a update picture of plant growth, i have removed/trimmed a lot of the floters though. Everything seems fine so far with the dsb experiment.

This is 12-days of growth since previous picture, pretty good to be just plain sand substrate i think.
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Old 07-07-2013, 09:07 PM   #12
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the only goal of the DBS is for NO3 reduction to N2 gas.
We tend to dose and add KNO3 for a NO3 source and over time, low or high tech methods, planted tanks run low/limiting on NO3 very often.

A deep sediment for planting is fine.
But DBS offers you little else and displaces a great deal of your aquarium volume with sand, instead of plants, hardscape etc.

In other words, it offers no benefits, but does no harm either.
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Old 07-07-2013, 10:09 PM   #13
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This is really interesting I had never heard of this theory before. I accidentally used a lot of sand in my tank and ended up actually making it about twice the height I originally intended, it's about 2.5 inches now. Honestly, I think that it looks pretty nice with the scape of the tank and seems like it will provide a lot of depth for the roots to settle into. I used nature sand for the aesthetics with pool sand under it as well as a mineralized topsoil for the plants. Would to topsoil do anything to aid in this method?
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Old 07-08-2013, 08:26 PM   #14
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Quote:
Originally Posted by plantbrain View Post
the only goal of the DBS is for NO3 reduction to N2 gas.
We tend to dose and add KNO3 for a NO3 source and over time, low or high tech methods, planted tanks run low/limiting on NO3 very often.

A deep sediment for planting is fine.
But DBS offers you little else and displaces a great deal of your aquarium volume with sand, instead of plants, hardscape etc.

In other words, it offers no benefits, but does no harm either.
Hello and thanks for your answer.

Hmmm, didn't think about that, you probably have right about the NO3.

But do you think the DSB could benefit the tank in som other way, for example would the deep sand bed with a lot of micro organismes have some benefits?

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Old 07-08-2013, 08:28 PM   #15
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Quote:
Originally Posted by Fuzz View Post
This is really interesting I had never heard of this theory before. I accidentally used a lot of sand in my tank and ended up actually making it about twice the height I originally intended, it's about 2.5 inches now. Honestly, I think that it looks pretty nice with the scape of the tank and seems like it will provide a lot of depth for the roots to settle into. I used nature sand for the aesthetics with pool sand under it as well as a mineralized topsoil for the plants. Would to topsoil do anything to aid in this method?
Have no experience with that type of substrate, but i would guess the top soil will have some benefits.
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