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post #1 of 4 (permalink) Old 02-09-2013, 05:14 PM Thread Starter
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Soil / test tank

Hello!

I am going to start a low tech Walstad tank with dimensions 35,5x35,5x18 inches.

Beacuse i am going to use soil i decided to test the soil setup in a smaller tank first, a 12x12x14 inches small cube.

The tank has been running since 31-january with 1 inch of soil and 1 inch of sand 0,2-1,0 mm grain. There is 10 Mosquito rasboras and 5 cherry shrimps in the tank and a lot of plants.

I did some water tests today:
Ammonium: 0,0
GH: 4

It looks like the soil is ok to use and the plants is taking care of the Ammonium but the GH seems to be a little low.

When starting the larger tank should i mix in something in the soil to rase the GH?

Jnad
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post #2 of 4 (permalink) Old 02-09-2013, 07:47 PM
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Location: Citrus County,Florida
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My feeling is that 3-5dGH and 2dKH is ample mineral content for my fish and plants.

The Fraternity of Dirt
If at first you don't succeed,,, keep kicking it
RubberSideDownOnTheLanding,
2-75g planted, 5-55g planted, 5-20g planted, 110g w/30g sump, 8-10g, Refugium, doghouse/newbie
2012 update adding table top pleco pans & a 90g (Nutz)
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post #3 of 4 (permalink) Old 02-14-2013, 10:40 PM Thread Starter
Planted Tank Obsessed
 
Join Date: Aug 2012
Location: Norway
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Hello!

Today there was a happening in the tank. A big bubble of air or gas realesed from the bottom, it was of a size so it splashed water on the light over the tank when it reatched the surface. It also brought some sand in to the water column, i can see sand on some plant leaves. But fortunately there was no cloudyness in the tank water after this.

Is this normal in the start of a soil tank or is it beacuse the sand cap is not letting the soil breathing?

Jnad
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post #4 of 4 (permalink) Old 02-15-2013, 04:25 PM
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gassing is normal and if mounding appears to be happening a manual release using tongs etc. to poke through the cap allowing build up to release is recommended.

The Fraternity of Dirt
If at first you don't succeed,,, keep kicking it
RubberSideDownOnTheLanding,
2-75g planted, 5-55g planted, 5-20g planted, 110g w/30g sump, 8-10g, Refugium, doghouse/newbie
2012 update adding table top pleco pans & a 90g (Nutz)
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