substrate separation - The Planted Tank Forum
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post #1 of 4 (permalink) Old 05-24-2019, 01:35 PM Thread Starter
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substrate separation

Tried some searches to no avail... how does one keep different substrates separated in an aquascape? I am thinking that there will need to be some type of barrier, between the different type of substrates to keep them from mixing, but i cant figure out what would be a good material. cardboard would bend to different shapes, and not be so wide as to be very visible, especially once plants have grown in, but I think it would turn to mush very quickly and no longer keep the substrate from mixing. any ideas? please? thankx.
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post #2 of 4 (permalink) Old 05-24-2019, 01:59 PM
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I think a lot of people use corrugated plastic. Like yard signs are made from. Readily available, cheap and easy to work with. I think Home Depot carries black pieces. Dividers will help keep things separate. The size and weight of your substrates can make a difference. If you have fish it will probably require some maintenance. If you do a search on the forum for "substrate dividers" literally hundreds of relevant threads will come up.
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post #3 of 4 (permalink) Old 05-24-2019, 02:52 PM Thread Starter
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I searched substrate separation and didnt find anything I will try dividers. I have used those, but only for slopes, with the same substrate throughout. those corrugated pieces seem difficult to achieve curved shapes, but maybe i will need to plan it out and silicone the divider to the bottom of the aquarium in the shape I want and then fill the substrate in. I was looking for something where just the weight of the substrate on either side would hold the shape I wanted.
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post #4 of 4 (permalink) Old 05-26-2019, 12:52 PM
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I have seen people use the corrugated plastic as dividers on curved shapes. To start with you tape them in place on the ends and use rocks to hold the bends. Then as you add substrate to both sides you can remove the tape and rocks and the equal pressure/weight from both sides holds it in place.
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