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Old 11/30/2017, 10:20 PM   #1
HippieSmell
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Tunze 6150. How close to sand bed?

I think the manual says 8 cm, but it sounded like it was only in the horizontal position. What about vertically?


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Old 12/01/2017, 07:51 AM   #2
rvitko
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This will vary with sand grain size, in my tank I found 5" in the horizontal position was the minimum with standard 2-3mm aragonite sand. The biggest issue is once per day the pump back flushes itself for about 20 seconds and if closer to the sand this will stir up the sand and it gets sucked into the pump when it rights the direction.


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Old 12/01/2017, 09:40 AM   #3
HippieSmell
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Is it the propeller distance to the sand we're worried about, or the end of the pump where it sucks in water for cooling?


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Current Tank Info: 78"x36"x27" acrylic, 6 Orphek Atlantik V3+ Compacts, MRC Orca Pro II w/washdown, CalcFeeder Pro AC3, Emperor Aquatics 80w UV, 80/20 aluminum stand, Vortech MP60's, Theiling Rollermat, GHL Profilux 3.1T EX, Kessil H380
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Old 12/01/2017, 11:46 AM   #4
rvitko
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Both, but in a vertical orientation the 8 cm, roughly 3" distance would be sufficient as the suction is not that strong from the bottom, where we would get into trouble in the horizontal orietation is the back flushing would stir the sand so there is suspended sand to be sucked in when the direction reverses to the normal direction.


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Roger Vitko
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Current Tank Info: 210 gallon planted tank with Altum Angelfish
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Old 12/01/2017, 11:58 AM   #5
HippieSmell
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Gotcha. Thanks!


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Time flies like an arrow. Fruit flies like bananas.

Current Tank Info: 78"x36"x27" acrylic, 6 Orphek Atlantik V3+ Compacts, MRC Orca Pro II w/washdown, CalcFeeder Pro AC3, Emperor Aquatics 80w UV, 80/20 aluminum stand, Vortech MP60's, Theiling Rollermat, GHL Profilux 3.1T EX, Kessil H380
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