DIY mini canister under 10 bucks - The Planted Tank Forum
 
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post #1 of 7 (permalink) Old 03-24-2011, 06:58 AM Thread Starter
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DIY mini canister under 10 bucks























sorry there is no picture explanation,
but people says "picture worth thousand words"


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post #2 of 7 (permalink) Old 03-24-2011, 07:21 AM
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it might be better a container with metal hinged clasps to hold the lid on. I've used these containers before and found that plastic "hinge" will break easily after repeated use.

Another thing to mention would be the powerhead you used and the size of your tank, just so people have a rough idea

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post #3 of 7 (permalink) Old 03-24-2011, 07:34 AM Thread Starter
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Quote:
Originally Posted by outcast View Post
it might be better a container with metal hinged clasps to hold the lid on. I've used these containers before and found that plastic "hinge" will break easily after repeated use.

Another thing to mention would be the powerhead you used and the size of your tank, just so people have a rough idea
I agree with you, thanks for your advice.

this is a old project, about 2 years ago.
I'm using Aquila P1000 powerhead with 400L/H (written), but I believe the exact flow is far under that number.

This DIY canister was using for my 1gal tank, you can see it behind the 20x15x15cm tank:


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post #4 of 7 (permalink) Old 03-24-2011, 03:08 PM
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quick question, do you have to powerheads running, one for taking in the water from the tank and the second one for bring in the water from the filter to the tank? i want to build one for my 20g tank.
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post #5 of 7 (permalink) Old 03-24-2011, 04:20 PM Thread Starter
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Originally Posted by parasuco View Post
quick question, do you have to powerheads running, one for taking in the water from the tank and the second one for bring in the water from the filter to the tank? i want to build one for my 20g tank.
If you fulled the canister with water before running the powerhead, it wont be a problem
And make sure water level in tank must be higher than canister


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post #6 of 7 (permalink) Old 03-24-2011, 06:02 PM
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One thing for people to keep in mind is that DIY canisters like this should only be used at tank level. As soon as you start lowering it below the tank level, the head pressure increases (1psi for every 3ft, and it doesn't take much pressure to pop the seal on those containers), and it will spring a leak. It takes a lot of work to make a canister water tight enough to be run on the floor. I tried it a few years ago for a reef, and it was a challenge to say the least.
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post #7 of 7 (permalink) Old 03-24-2011, 06:31 PM Thread Starter
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Originally Posted by evilc66 View Post
One thing for people to keep in mind is that DIY canisters like this should only be used at tank level. As soon as you start lowering it below the tank level, the head pressure increases (1psi for every 3ft, and it doesn't take much pressure to pop the seal on those containers), and it will spring a leak. It takes a lot of work to make a canister water tight enough to be run on the floor. I tried it a few years ago for a reef, and it was a challenge to say the least.
Yes you are absolutely right, i put the canister as the same level with tank, but the water level in canister must be lower than water level in tank. If its not, air will be entering the canister and the output full with water bubbles. Other thing, if it happen in long term it will broke the powerhead


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