Riparium Substrate? - The Planted Tank Forum
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post #1 of 3 (permalink) Old 02-05-2018, 03:34 PM Thread Starter
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Riparium Substrate?

I understand riparium plants submerge the roots and let the plant grow emersed, but do the roots need substrate?
Can it be substrateless?
How do you hold plants up so they don't fall over in the planter?

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Last edited by FishRFriendz; 02-05-2018 at 03:45 PM. Reason: More questions
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post #2 of 3 (permalink) Old 02-05-2018, 05:05 PM
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Right now I'm working on a similar project but am only about a month ahead of you. While we're both waiting for someone more experienced than me to answer this, I'd say that if you don't want substrate, you'll need plants that don't need substrate when submerged, but that can grow emersed, like Anubias or Brazilian pennywort. Rocks could anchor the roots of plants up that aren't rooted in substrate.
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post #3 of 3 (permalink) Old 02-05-2018, 05:47 PM
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You will want something to anchor the plants. However, stem plants can be left floating eventually forming a mat at mid-level/surface. Rosette plants like aroids, or swords will need something to keep them weighted down if you dont want to put them in some kind of planter.

Now, regarding planters, use a lightweight substrate like clay hydroponics balls, or kitty litter(can be very silt heavy though - rinse thoroughly before use). Another consideration is that eventually plants produce enough root mass to stabalize itself in a container.

A final option is to use suction cups with clips and simply place the plant at crown level (or around the stems in the case of bunched stem plants) in the clip/ring.
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