I think I will make a River Aquarium - The Planted Tank Forum
 
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post #1 of 10 (permalink) Old 11-22-2008, 01:17 PM Thread Starter
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I think I will make a River Aquarium

The top shelf in my new fish room is 10 feet long and 2.5 feet wide and I can fit a 15" high aquarium there. I think I will make a river aquarium. Have most of the plants and decor in the mid ground and make the water swirl round them. Suggestions and criticism invited.

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post #2 of 10 (permalink) Old 11-22-2008, 03:15 PM
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Having seen some of your other tanks I can't wait to see this one!

Have any plumbing ideas yet?





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post #3 of 10 (permalink) Old 11-22-2008, 10:49 PM Thread Starter
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Those of you who are familiar with my planted tank layouts, know that I am one of the few (and we are an endangered species) who still persist with UGF. For those of you who are un-familiar with my set-ups I will simply explain here that about 6 of the fore-ground, immediately behind the glass is a partitioned-off portion of the substrate which is packed in my unique style to form the intake of the UGF. The actual intake is a slitted pipe (very like a spray-bar) which is connected to power-heads at the rear of the aquarium.

Now if I have 4-5 power-heads at the rear each directing its out-flow sidewise in the same direction, I think we might get a good movement going in one direction, especially if I keep a 6 wide channel free from tall vegetation. A few tall flat stones strategically placed could confine most of the flow in this clear channel and that could make the water in the entire channel to move like a stream. A densely planted mid-ground (the rippled portion) would keep the water in the front insulated from the motion of the water in the channel behind it.

Now the movement of the water along the front is what is worrying me. It is totally dependant upon the commotion I have created in the rear and lacks a motive force of its own. Besides that the intake of the UGF is going to have a killing effect on the flow. 10 feet is a long distance, where you are depending on passive forces. I think I might be forced to design a few well directed jets of water all along the front channel to keep the motion going. That might mean more power-heads with their out-put camouflaged as stone decorations in the front channel.

I am still planning so suggestions please.

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Last edited by essabee; 08-28-2009 at 01:04 PM.
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post #4 of 10 (permalink) Old 11-24-2008, 03:09 PM
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Why don't you just have the water move from one end to the other instead of circling.

I think I remember seeing someone doing this with an aquarium for Hill Stream loaches. They use three upright foam filters on one end that where connected to three powerheads on the other end by pipes that ran under the substrate.

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post #5 of 10 (permalink) Old 11-25-2008, 12:48 AM Thread Starter
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When you have a circular current you have an unending stream Just consider what a fish like the Congo Tetra is going to do in such a stream.

I have no doubt I can get a strong flow in the rear channel. Once that is done the kinetic energy with the current will require to be neutralised by the resistances of the sides and the inertia in the front channel, this would result in a slow flow along the front channel due to the reaction. The central planted area will have eddy current between the plants, decor and what have we. That's invited as it will keep the water there homogeneous. We cannot have this portion solid. I expect this portion to act as the greatest retardant to the flow.

To offset this I am toying with the idea of having a sub-substrate perimeter of pipe around this portion with jets of water spewing out at a tangent to the perimeter. This would reduce the retardation from the plants etc. and keep the flow going.

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post #6 of 10 (permalink) Old 11-25-2008, 03:17 AM
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It looks to me like the way you have the inlets for the powerheads you will kill off the flow before it gets all the way along the front glass. Each powerhead will be taking back as much flow as it contributes, so by the time the water gets to the last powerhead at the right, only one quarter of the flow is still going around the tank. I haven't dreamed up any idea yet for how to counter that, but it is interesting enough to keep me thinking.

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post #7 of 10 (permalink) Old 11-29-2008, 02:41 AM Thread Starter
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My mind is toying with the following layout

If you have a choice, you have a problem, till you elect your choice. No choice, no problem, only consequences, learn to live with them.

Last edited by essabee; 08-28-2009 at 01:03 PM.
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post #8 of 10 (permalink) Old 11-29-2008, 04:04 AM
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Put a Fluval FX5 filter on a 55g.
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post #9 of 10 (permalink) Old 11-29-2008, 02:01 PM
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Quote:
Originally Posted by saint27 View Post
Why don't you just have the water move from one end to the other instead of circling.

I think I remember seeing someone doing this with an aquarium for Hill Stream loaches. They use three upright foam filters on one end that where connected to three powerheads on the other end by pipes that ran under the substrate.
I have one of these set up and I love it. The idea is to have the flow in one direction like a natural river. It was developed by Martin Thoene at loachesonline and there are pictures and details there if your interested. Easy to build.
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post #10 of 10 (permalink) Old 11-29-2008, 03:36 PM
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Quote:
Originally Posted by essabee View Post
My mind is toying with the following layout
That should work very well. Please show us the details as you make this.

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