My DIY Internal sand filter - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 6 Old 04-14-2011, 05:44 PM Thread Starter
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My DIY Internal sand filter

As you probably know sand filters have a huge capacity to eat up ammmonia, nitrites and nitrates. I want to keep my Piranha tank as clean as possible and I don't have much money at the moment so I thought I'd build my own out of the bits I had lying around. This isn't a 'how to' as it's unlikely you'd have the bits to hand but it gives you an idea...

First I took the jet out of the centre of an old Fluval 4 so I could run some tubing through it...



Then I filled the centre bit (where the filter material goes) with sand...



This photo shows where the tubing goes so that the jet comes out at the bottom of the sand, I changed the tubing in case you're wondering...



I put a T piece in so that it wouldn't take the full force of my the powerhead which is a bit over the top for this...



This is it fitted and working a treat...





The pictures don't tell the full story, it's very tricky to get the balance between blasting the sand right out of it and not moving the sand at all. I had to try lots of different set-ups before I found one that works.

Hopefully it will keep my parameters spot on.
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post #2 of 6 Old 06-13-2011, 06:33 PM
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This is one of the best DIY projects I have ever seen! what kind/size of piping did you use to hook up the power head? Do you think it would also work good as a gravel Filter?
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post #3 of 6 Old 06-13-2011, 06:41 PM
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Seems like you could use something other than sand if you wanted... It's basically a biological filter, right? Why not use ceramic rings or sponges and get some mechanical filtration out of it too?

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post #4 of 6 Old 06-13-2011, 07:04 PM
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nice

hmmm i am thinking crushed aragonite in place of the sand to act as a buffer and calcium carbonate releaser in high calcerous needing enviroments like a tridacnid bed.thanks man.

...........
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post #5 of 6 Old 06-14-2011, 02:18 PM
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Now that would be brilliant... You could even add some LR rubble...

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post #6 of 6 Old 06-18-2011, 12:44 PM
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what kind/size of piping did you use to hook up the power head?
Whoops, I missed reading that part
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