What GPH/max head water pump do I need? - The Planted Tank Forum
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post #1 of 7 (permalink) Old 05-06-2017, 10:02 AM Thread Starter
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What GPH/max head water pump do I need?

So I am building a paludarium with a false bottom, the water-false bottom interface is going to have a sponge around it to be a matten-filter with the pump underwater under the false bottom. The pump will move the water to the other side of the aquarium to then pump vertical to a waterfall. The aquarium is a 20-long and will in the end be something like 40% Land 60% water with the land starting roughly 6.5-7inches off the ground leaving the tank to be roughly a total of 10gallons of water with roughly 6 gallons of non sectioned off water (thinking a betta tank). The pump is going to be in kinda in the back and the middle or the back corner to get a relatively even flow through the matten sponge, which equates to a horizontal of 23inches (pump in the back middle) to 26inches (pump in the back corner) then a vertical of 7 to 8 inches for waterfall. What max head do I need/what GPH should i be looking at? Amazon has some cheap 80GPHs with max heads of 2ft 6inches (30inches).

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post #2 of 7 (permalink) Old 05-06-2017, 02:33 PM
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Originally Posted by Robin Conor Sallade View Post
So I am building a paludarium with a false bottom, the water-false bottom interface is going to have a sponge around it to be a matten-filter with the pump underwater under the false bottom. The pump will move the water to the other side of the aquarium to then pump vertical to a waterfall. The aquarium is a 20-long and will in the end be something like 40% Land 60% water with the land starting roughly 6.5-7inches off the ground leaving the tank to be roughly a total of 10gallons of water with roughly 6 gallons of non sectioned off water (thinking a betta tank). The pump is going to be in kinda in the back and the middle or the back corner to get a relatively even flow through the matten sponge, which equates to a horizontal of 23inches (pump in the back middle) to 26inches (pump in the back corner) then a vertical of 7 to 8 inches for waterfall. What max head do I need/what GPH should i be looking at? Amazon has some cheap 80GPHs with max heads of 2ft 6inches (30inches).
Any chance you could put together a drawing? Regardless of what size pump you need I always find in unknown circumstances or a project like this where aesthetics is involved its best to have something you can make adjustments to.

Dan
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post #3 of 7 (permalink) Old 05-06-2017, 04:07 PM Thread Starter
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The pump isn't on the drawing but this is the rough to size design

Here is a better one with the possible pump locations
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Last edited by Darkblade48; 05-07-2017 at 07:15 AM. Reason: Please use the edit function for back to back posts to keep threads cleaner
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post #4 of 7 (permalink) Old 05-06-2017, 04:43 PM
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what kind of flow are you looking for out of the waterfall? factors like width will play a big roll in the amount of water needed to make it look natural. Did you just want a trickle or cascading effect?

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post #5 of 7 (permalink) Old 05-06-2017, 04:59 PM Thread Starter
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Kinda something in between a trickle and a Cascade probably, betta tend to dislike too much flow (in general). Im thinking a 1inch or so drop down rocks but I want a decent flow out of it to keep a good cycle going and filtration. Maybe a fall with a flow around equal to or slightly greater than a typical HOB but will be trickling down rock.
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post #6 of 7 (permalink) Old 05-06-2017, 05:15 PM
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This is cheap and adjustable and would give you about 10x gph at max rate which would be more than plenty and will still allow you to lower the flow to the desired rate.

https://www.amazon.com/Homasy-Submer...+aquarium+pump

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post #7 of 7 (permalink) Old 05-06-2017, 07:10 PM Thread Starter
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Cool thanks
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