Preventing anaerobic gas bubbles in a Biotope - The Planted Tank Forum
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post #1 of 7 (permalink) Old 06-16-2017, 12:04 AM Thread Starter
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Preventing anaerobic gas bubbles in a Biotope

Hi, I'm planning to make a semi-biotope for Endler's & Habrosus. The bottom will be layered: Eco-complete, then Pool Filter Sand, then Leaf litter. My question is will anaerobic gas bubbles in the sand layer be a problem or will the layer of Eco below it help prevent that? I plan to have a good amount of leaf litter, wood & seed pods, so moving around the sand would be difficult. Thanks.

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post #2 of 7 (permalink) Old 06-16-2017, 01:03 PM
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Just don't worry about it ;-) Or get some MTS and never even think that any bubble could appear. For 10 year my tank is going with 10 cm thick fine sand (really fine 0,1-0,2 mm) never seen any gas pocket. It works like massive biofilter.
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post #3 of 7 (permalink) Old 06-16-2017, 05:04 PM
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I found this when poking around and it was a good read and very recent. May help answer some of your questions.

Hydrogen Sulfide in Aquariums

Dan
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post #4 of 7 (permalink) Old 06-19-2017, 12:36 AM Thread Starter
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I found this when poking around and it was a good read and very recent. May help answer some of your questions.

Hydrogen Sulfide in Aquariums

Dan
Am I understanding this correctly that it's better to have the sand at least 2.5" deep? I was going to have it at 1", because I thought deeper = bad. But if 2.5" is ok what I'd like to do is layer .5"-1" of Eco Complete, then 2.5" of pool filter sand, then leaf, seed pods & pieces of wood, for plants it will be Water Lettuce and either 1 Amazon sword or an Anubias.

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post #5 of 7 (permalink) Old 06-19-2017, 01:20 AM
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That's what I get out of it, you want to keep the sand less than 2.5"deep having a larger substrate below would aid in reducing the chances of H2S production. Of course I'm no expert and have not tested this but I would say 2" is probably a safer bet with eco underneath.

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post #6 of 7 (permalink) Old 06-20-2017, 01:04 AM
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Check out dennis wong from this forum. His youtube video on substrates is a seriouse eye opener. I like him run deep dirt at the back of the tank like 7inches. As long as you plant the crap out of it the roots provide oxygen and theres no issues.

Bump: https://youtu.be/AgXQ6mBvhK8
Thats the link its a awesome and informative read and realy helped me he also uses aqua soil on top.
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post #7 of 7 (permalink) Old 06-20-2017, 02:03 AM Thread Starter
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Check out dennis wong from this forum. His youtube video on substrates is a seriouse eye opener. I like him run deep dirt at the back of the tank like 7inches. As long as you plant the crap out of it the roots provide oxygen and theres no issues.

Bump: https://youtu.be/AgXQ6mBvhK8
Thats the link its a awesome and informative read and realy helped me he also uses aqua soil on top.
Thank you, that was a very interesting video. I wasn't planning to add many plants, because the area I want to replicate doesn't have many. But it's only a 10 gallon, so 1 sword & 1 anubias may be enough roots. Maybe I should take plants with established root systems out of my other tanks instead of buying new...

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