parotet
Member
Hi all
Probably something that has been already discussed... My question is about the difference between the kind of flow produced by a spraybar or a lily pipe. I have a 65 liters (60 cm long) tank with two redmoor islands and the typical path in between. I also have a spraybar on the rear all along the 60 cm just some cm under the water surface, good co2 profile, EI ferts, 10x filter with little media volume, etc.
Some pictures: http://www.ukaps.org/forum/threads/2.30758/
Actually the scape was even simplified some days ago, getting rid of a branch that was going upwards on the right side with some emerged plants... I was not happy with the flow even with a nano Koralia under the spraybar placed in the center. The problem is that these redmoors are really a flow barrier, especially for the lower leaves of the plants just behind (on the background) and the consequence: some small patches of BBA on the elder leaves less exposed to water movement.
A spraybar all along the back let the water jets impact on the front glass, it makes the water go down and then go from the foreground to the rear... But in my case, the water finds a barrier. And yes, the plants parts that suffer BBA are just the ones behind this barrier. I have been told in my LFS that the wisest option would be to come back to the lily pipes. Placing the outflow on the right front side will create a circular flow (if looking from above it would be a kind clockwise movement) so it would a way of sorting out my two islands problem as the flow wouldn't find any barrier, but will turn around the barriers. But do this circular flow move the whole water column (36 cm heigh)? What I really need is to have flow on the bottom parts, both on the foreground (to keep a healthy Eleocharis carpet) and background (my stems plants on the background are healthy once they surpass the redmoor height thus receive enough flow) and I am not really sure if the lily pipes will move also this bottom water layers...
Jordi
Probably something that has been already discussed... My question is about the difference between the kind of flow produced by a spraybar or a lily pipe. I have a 65 liters (60 cm long) tank with two redmoor islands and the typical path in between. I also have a spraybar on the rear all along the 60 cm just some cm under the water surface, good co2 profile, EI ferts, 10x filter with little media volume, etc.
Some pictures: http://www.ukaps.org/forum/threads/2.30758/
Actually the scape was even simplified some days ago, getting rid of a branch that was going upwards on the right side with some emerged plants... I was not happy with the flow even with a nano Koralia under the spraybar placed in the center. The problem is that these redmoors are really a flow barrier, especially for the lower leaves of the plants just behind (on the background) and the consequence: some small patches of BBA on the elder leaves less exposed to water movement.
A spraybar all along the back let the water jets impact on the front glass, it makes the water go down and then go from the foreground to the rear... But in my case, the water finds a barrier. And yes, the plants parts that suffer BBA are just the ones behind this barrier. I have been told in my LFS that the wisest option would be to come back to the lily pipes. Placing the outflow on the right front side will create a circular flow (if looking from above it would be a kind clockwise movement) so it would a way of sorting out my two islands problem as the flow wouldn't find any barrier, but will turn around the barriers. But do this circular flow move the whole water column (36 cm heigh)? What I really need is to have flow on the bottom parts, both on the foreground (to keep a healthy Eleocharis carpet) and background (my stems plants on the background are healthy once they surpass the redmoor height thus receive enough flow) and I am not really sure if the lily pipes will move also this bottom water layers...
Jordi
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