How would you fill this sump? - The Planted Tank Forum
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post #1 of 22 (permalink) Old 07-21-2012, 11:08 AM Thread Starter
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How would you fill this sump?

I have in mind Bio balls with some alfagrog in section 1 ( high inflow of 3000lph will stop to much debris building up in there ) , sponges course-medium-fine with some more alfagrog and carbon in section 2, then just some poly wool in section 3 with the return pump.

Basically how I would normally with Malawi's but wondering if I should do anything different as it will be a planted tank.

60cm/30cm/30cm ( lwh )

Section 1 14cm
section 2 30cm
section 3 16cm

Thanks

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post #2 of 22 (permalink) Old 07-21-2012, 12:04 PM
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Personally, I would put mechanical filter media in the first chamber then the bio media in the second. Lots of filter wool should be enough to trap particles. I would also ditch the carbon because it isnt really needed.

With the design of the sump, I think that if you stuff the second chamber with filter media only the upper part will receive water flow.The last baffle should be elevated above the sump bottom and above the water level in order for the water to be channeled through the entire area of the second chamber.

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post #3 of 22 (permalink) Old 07-21-2012, 12:19 PM Thread Starter
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You are right about the water just skimming over the top of the sponges in the second chamber and I did think it would be a problem but was just going to see how it went.

I will cram the first chamber with sponges then and second with bio balls and grog etc, I can get enough bio media in there for a 5000l tank lol I will also put a powerhead in with it for the extra circulation and the poly wool in the last section with the return pump.

I will be getting a better and bigger sump at some point in the next few months though so this will just be used to to get the tank up and running.
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post #4 of 22 (permalink) Old 07-21-2012, 01:02 PM
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I prefer bio-bale. it has excellent surface area capacity. much more than bio balls, probably on par with alfa grog

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post #5 of 22 (permalink) Old 07-21-2012, 01:14 PM
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I've used Bio-Balls, Lava rock, 10PPI foam, and 20" round scrubber pads for Professional Floor scrubbing machines. Al worked well my reef tank and pond.

For easy maint. I like 10PPI foam the best.

I just saw a "new" hydroponic media last week that I think would work well.

http://www.growstone.com/technology/...uring-process/

In my local Hydroponic shop I think it was $39 for enough to fill a 20L 3/4 of the way up? The stuff is very light weight. Might be worth looking into. I like that it's a GREEN product too.

Last edited by DogFish; 07-21-2012 at 04:05 PM. Reason: There's a "y" in Hydroponic, not the adjacent "u" that I hit.
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post #6 of 22 (permalink) Old 07-21-2012, 01:25 PM
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THAT is Way COOL

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post #7 of 22 (permalink) Old 07-21-2012, 01:34 PM Thread Starter
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Looks good,

Here is the sump now with the first chamber done and the second started with 2kg of alfa grog and 100 30mm bio balls. I will be draining the tank and re filling again today, the water still has some tanning from soaking a piece of wood.



Also thought I would share the main tank water surface, the return does not break the surface.

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post #8 of 22 (permalink) Old 07-21-2012, 01:37 PM Thread Starter
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I will be changing the sump inflow pipe to a diy spray bar to give even flow over the sponges in chamber 1.
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post #9 of 22 (permalink) Old 07-21-2012, 01:55 PM
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What do you mean it does not break the surface? It's very agitated based on the image. :/

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post #10 of 22 (permalink) Old 07-21-2012, 02:06 PM Thread Starter
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Quote:
Originally Posted by specks View Post
What do you mean it does not break the surface? It's very agitated based on the image. :/
Exactly that lol it is VERY agitated but does not actually break the water surface just a very smooth and strong ripple
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post #11 of 22 (permalink) Old 07-21-2012, 03:28 PM
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agitation looks great. i migh add that having i spray longways through the tank will spread the flow better and is less likely to disrupt plan growth

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post #12 of 22 (permalink) Old 07-21-2012, 03:58 PM
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You just need to add a baffle before the last one so the water actually goes through the bio media under the added baffle and over the last one. Personnaly I use no baffles, just dividers to keep down the turbulence.

Good call skipping the floss. It's just a trap for debris to get caught.


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post #13 of 22 (permalink) Old 07-21-2012, 07:03 PM
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Looks like it breaks the surface

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post #14 of 22 (permalink) Old 07-21-2012, 07:34 PM
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Do sumps work as well in freshwater as they do in saltwater?
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post #15 of 22 (permalink) Old 07-21-2012, 07:41 PM
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Quote:
Originally Posted by WallaceGrover View Post
Do sumps work as well in freshwater as they do in saltwater?
im not a saltwater guy but i'd say yes

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