Diy 2.5g nano canister filter - The Planted Tank Forum
 
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post #1 of 15 (permalink) Old 09-28-2010, 06:56 PM Thread Starter
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Talking Diy 2.5g nano canister filter

Well i finally talked my boss into letting me keep a small tank on my desk in my office his stipulation is it cant look cluttered and cant be big at all. I got him laughing by telling him a 20G is small to me LOL. So i decided on a 2.5G tank i saw at petsmart. Keeping in mind the clean look i decided to make my own canister filter for it so i can hide it under my desk. So i drew up a few layouts and searched around for needed materials and found i have almost everything for the project, except for a really small water pump. The smallest i found was about 20GPH adjustible to 80GPH. Looked perfect. Also on sale i picked up a nano heater for 4.50 at petsmart too. So i wanted to put my heater inside of the canister as well (not too much room for it in the tank). Here is what i have so far (I AM A PAINTSHOP MASTER LMAO) So let me know what you think about the idea. I will keep you posted on the progress of the project throughout the week!!!
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post #2 of 15 (permalink) Old 09-28-2010, 07:07 PM
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What are you going to use as the canister itself?
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post #3 of 15 (permalink) Old 09-28-2010, 07:10 PM
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Make sure it sits in a 3g bucket in case it leaks. lol
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post #4 of 15 (permalink) Old 09-28-2010, 07:26 PM Thread Starter
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I am currently looking at what to use as the canister. I have thought of a large mason jar so it is solid. Or i have some metal jar type canisters i have that u use for sugar/flour and those types of things that u would put on your counter top. That way i can mount the water pump to the bottom of the lid and it will secure tightly also. And make it easy to open up and clean.

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post #5 of 15 (permalink) Old 09-28-2010, 07:30 PM
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I would just buy a small tom's canister filter, they're only like 25 bucks, and don't leak. I have a feeling if this leaks, it's gonna be all bad in your office.
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post #6 of 15 (permalink) Old 09-28-2010, 07:35 PM Thread Starter
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Lol ya ive looked at one of those. I guess i just wanted to try a new project. Ive done the numbers and total build cost for this setup will be about 15.00 so 15 bucks for a fun project is a good deal. I will be doing all of the test runs at my house and get it perfect before i take it into my office.

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post #7 of 15 (permalink) Old 09-28-2010, 07:46 PM
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Manufacturers don't use metal containers for their cans for a couple reasons. One I'm sure is cost but another must certainly be rust.
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post #8 of 15 (permalink) Old 09-28-2010, 07:49 PM Thread Starter
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This is a stainless steel type is that ok?

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post #9 of 15 (permalink) Old 09-28-2010, 07:55 PM
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What's the lid, how does it attach, how long will that seal hold up in water and how many openings and closings before it wont seal?

Stainless comes in many grades. A container made from high quality stainless I'd guess would cost more than the store bought filter mentioned above.
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post #10 of 15 (permalink) Old 09-28-2010, 08:26 PM Thread Starter
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The lid is glass with a rubber around the bottom as the seal it's the airtight type with the metal clasp that let's it swing open and closed. Not sure on the how many times thing. I have a few in a box I'm not using so I figure I might give them a try.

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post #11 of 15 (permalink) Old 09-28-2010, 08:34 PM
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Let us know how your boss likes it. lol
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post #12 of 15 (permalink) Old 09-28-2010, 08:36 PM Thread Starter
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Lol I will I'll post some pics

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post #13 of 15 (permalink) Old 09-28-2010, 08:47 PM
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Redsea nano filter works very well... Only costs 8.00 plus 5.00 shipping. Works well for up to 3 gallons and will provide everything you are looking for.

I have a 2.5 gallon tank at my desk, its a good size for nano fish, shrimps, or beta.
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post #14 of 15 (permalink) Old 09-28-2010, 08:53 PM
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Some ideas can be found via a google search of the board with the term "DIY Canister"

Some good, some not so good. lol

http://www.google.com/search?hl=en&a...s_nhi=&safe=on
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post #15 of 15 (permalink) Old 09-28-2010, 09:32 PM
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I made a DIY canister once... It worked (and didnt leak) but wasnt practical at all.

I used a small fountain pump that i had lying around. Unfortunately it didnt have the head to pump water from below the tank. It only worked when setting next to the tank.

So make sure that 20-80gph pump has the head that you need... and remember the higher the head the lower the flow.

Also priming was a pain, their was always air in the canister. Not sure how to incorporate a fix for that. Tubing and a syringe maybe?

Opening the canister without making a mess was impossible. the canister and all tubing had to be carried to a sink..... ball valves and quik connects would almost be a must if your running tubes behind a desk.


Final thoughts: It was a fun and challenging build. Although it worked, didnt leak and did the task - the practicallity of it was a failure. After hours of time, spliced wires, ruined containers, wasted sealant, and tubing I should have gone with a Tom Rapids mini - id probably still be using it today.

Although Im an avid DIY'er I honestly think canister filters should be left to the professionals. However im not saying it cant be done.....

Last edited by MlDukes; 09-29-2010 at 03:35 AM.
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