What's in your sump? - The Planted Tank Forum
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post #1 of 4 (permalink) Old 09-29-2011, 05:01 PM Thread Starter
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What's in your sump?

I feel like I'm missing something in my sump. I'm not sure I fully understand how the filtration works and what I *need* in there.

My sump set up was given to me, so I'm working within the system as it was originally made. It's a 25 gallon tank that is divided about 40/60 with an acrylic pane that has about a 3" gap at the bottom. On the smaller side, from top to bottom, water comes from the overflow and exits the tubing from a T shaped PVC pipe with lots of holes drilled in it. The water then flows through a blue and white filter sponge sitting on a grate covering about 2 gallons of bioballs. The water trickles through that and fills up the bottom 1/3 of the sump tank....the bioballs all sit above the water line. There is a two layer green sponge at the bottom of the acrylic pane separating the two compartments of the sump. In the larger section, I have the mag 7 pump and a heater. There is a fair amount of crud that collects on the bottom of this section. It's also where all the snails end up (grr). There also is a film on the top of the water here.

I don't have any carbon or UV sterilizers or whatever else.

So. What's in your sump?
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post #2 of 4 (permalink) Old 09-29-2011, 07:10 PM
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Perot foam is all I use now....two sheets, one blue, one black.
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post #3 of 4 (permalink) Old 09-29-2011, 07:34 PM
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My sump is basically the same. Only difference is that stuff builds up on the bioball side instead of the pump side, maybe because my split is about 70/30 instead of 40/60.

I do wish my pump side was a little larger sometimes.
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post #4 of 4 (permalink) Old 09-29-2011, 08:22 PM
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I am using Poret foam too, 10 pore and 30 pore. My sump hasn't any divider, the foam stands between the 40 breeder tank walls. I put the old sponge and scrubbies between the layers. At the moment the intake side is larger than the output side but with sponge walls I can change if I please.

Water comes in and exits through a drilled 1" pipe but I do like the idea of making it a T instead, may do that. The spare filter's biological media, heater and thermometer are in that section. Then comes the foam/scrubbies. The pump section holds the CO2 reactor as well as the pump and the pump is covered with a sponge as well.

That crud is probably really great stuff, ugly though it is. Am looking forward to siphoning most of it into the garden now I can SEE it and now I have enough room to maneuver in there.
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