Keeping dragon stone from slipping on the glass botom - The Planted Tank Forum
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post #1 of 8 (permalink) Old 09-06-2019, 05:06 PM Thread Starter
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Keeping dragon stone from slipping on the glass botom

I am having trouble with keeping my dragon stone from slipping when creating my rock structures. They keep falling over. I am using BDBS on my glass bottom and noticed that it is very slippery as compared to using soil which sticks together and helps the rock from moving out of place.

What is the best way to keep rocks from slipping along the botom of the aquarium when setting up the rock structures? I am hesitant to use egg crate underneath because of concerns of creating hydrogen sulfide pockets from restricting water flow through the gravel.

Any advice would be greatly appreciated.

Also, is it safe to use laundry bags filled with lava rock underneath the BDBS when creating a sloping bottom? Will this creat the potential for hydrogen sulphide pockets to form?
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post #2 of 8 (permalink) Old 09-06-2019, 05:47 PM
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You could silicone the rocks to the bottom perhaps? I wouldn't think egg crate would cause any issues.
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post #3 of 8 (permalink) Old 09-06-2019, 05:54 PM
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As mentioned, plastic egg crate is perfectly fine. I have used under sand many times.
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post #4 of 8 (permalink) Old 09-06-2019, 06:30 PM
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+1 for eggcrate. I started using it decades ago in African cichlid tanks to distribute weight under mountains of Lace rock and stuck with it. I actually have a 90g that has the same eggcrate and 2-3" of substrate from the late 90's with no issues

A buddy of mine had hydrogen sulfide pockets form years ago in a tank with no eggcrate, but he had very fine sand in a deep bed. The smell was horrible and it turned his hands black removing it. Bad times!, but I'm convinced the type of substrate plays a bigger role than the presence of the eggcrate.

I don't know if I'd trust laundry bags over time either. Sediment may clog them up and create a problem? You could always just use the lava rocks without the bag. Maybe glue a checkerboard grid out of silicone directly to the bottom? But eggcrate it so much easier
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post #5 of 8 (permalink) Old 09-06-2019, 07:31 PM
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Egg crate, cheap $5 roll fiberglass window screen and small lava rock are your best friends. Donít go over 1.5-2Ē deep with blast sand, use lava and couple layers of window screen on top of that to do most the build up. Use window screen and put 2 layers at slightly different angles to make a crosshatched tighter mesh when using finer sands, sand will stay above mesh but it still breaths nicely.
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post #6 of 8 (permalink) Old 09-06-2019, 07:51 PM
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Many of us who do heavier structures superglue the rock to the glass or underlying eggcrate/support structures. It can be scrapped off cleanly (but with some effort) if you take down the scape. Can also be dissolved with nail polish remover
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post #7 of 8 (permalink) Old 09-06-2019, 08:13 PM
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Eggcrate diffuser is what I've used in my latest scape.
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post #8 of 8 (permalink) Old 09-07-2019, 02:03 AM
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Either use eggcrate or glue the rock to some of the surrounding rocks.

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