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I bet growing those swords emergent like that is awesome for Nitrate removal. Once you can get a plant out of submerged growth they can be factories for processing Nitrates, thus the appeal of many floaters. What are your water parameters if you don't mind me asking? I imagine they are terrific in a tank with that much emergent growth and space. Personally, I love the look of that tank. It almost reminds me of using mangroves in SW tanks for Nitrate removal.
In the land of the blind, the one-eyed man is king.
Desiderius Erasmus
GHAC President
if the emersed swords are the same plants as the ones showing submersed leaves in the nov 11 pics then i would guess that they might be green ruffle swords (Echinodorus major) but its hard to tell. Many swords have 'melon' like leaves when they are emmersed. since they are flowering, you could look them up in a reference book that way. nice tank, the nitrates would be well under control with that growth much like a riparian setup. those discus really pop in that natural looking setting
75G Standard - High Light Planted Community Fish
28G Aquapod - Medium Light Planted Shrimp & Microrasboras
12G Eclipse - Bonsai Planted Betta & Shrimp
29G Standard - Vivarium w/ Red Devil Crabs
45G Exo-Terra - Terrarium w/ Hermit Crabs (in progress)
33G Cubish - Vivarium w/ D.auratus 'blue & bronze'
Why doesn emersed plants take up more nitrates then submersed?
i believe it just has to do with a more efficient metabolism when the plants have access to atmospheric CO2. we target 30ppm CO2 in planted aquariums and this makes a big difference in plant growth, atmospheric CO2 levels are closer to 400ppm. since the plants already utilize nitrates for food, this higher metabolism increases their consumption. i had riparium type refugiums on my overstocked rainbowfish aquariums and this made a big difference in nitrate removal.
75G Standard - High Light Planted Community Fish
28G Aquapod - Medium Light Planted Shrimp & Microrasboras
12G Eclipse - Bonsai Planted Betta & Shrimp
29G Standard - Vivarium w/ Red Devil Crabs
45G Exo-Terra - Terrarium w/ Hermit Crabs (in progress)
33G Cubish - Vivarium w/ D.auratus 'blue & bronze'
From what I gather submersed vegetation is limited in growth and exchange, while emersed plants can grow far faster and consume far more nitrates given they are not limited to what CO2 and oxygen are just in the water column itself. Maybe someone else has a bit better info on nutrient uptake for emersed vs. submerged growth.
In the land of the blind, the one-eyed man is king.
Desiderius Erasmus
GHAC President
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