Can I use a Fluval 405 filter on a 29G long tank? - The Planted Tank Forum
 
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post #1 of 4 (permalink) Old 05-22-2018, 03:09 AM Thread Starter
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Can I use a Fluval 405 filter on a 29G long tank?

I'm new to the hobby and I'm setting up my first planted tank in my recently deceased (RIP Lt. Dan) bullfrog's 29G long tank. I got a sweet deal for a used Fluval 405 canister filter and if I can buy now with future tank upgrades in mind then it would be too good to be true. Thoughts on the filter and whether or not it will create a whirlpool of death for my future fish in this small(ish) tank would be appreciated.
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post #2 of 4 (permalink) Old 05-22-2018, 05:01 AM
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I own a fluval 205 and it has an adjustment switch so I can turn down the flow. I'm sure the 405 has the same thing

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post #3 of 4 (permalink) Old 05-23-2018, 05:01 PM
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Yes, the AquaStop valve allows you to cut the flow down by as much as 50% using the gray lever. The product manual advises against reducing flow any more than this. I used a 306 on a 20 high for a couple of years and was able to dial the flow back to a reasonable level.
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post #4 of 4 (permalink) Old 05-23-2018, 11:02 PM
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Quote:
Originally Posted by New2plantedtank View Post
I'm new to the hobby and I'm setting up my first planted tank in my recently deceased (RIP Lt. Dan) bullfrog's 29G long tank. I got a sweet deal for a used Fluval 405 canister filter and if I can buy now with future tank upgrades in mind then it would be too good to be true. Thoughts on the filter and whether or not it will create a whirlpool of death for my future fish in this small(ish) tank would be appreciated.
Don't dial it down.
Use a tee fitting and elbows or even use some craft store mesh to not make such a nozzle effect on the flow.
The filter will have the same "pull", but much less nozzle-stream flow as for directional flow.

Use whatever you can to zip tie or fit on the outlet without restricting it.
The volume of water or cycles per hour will be at the highest without ruining the harmony of the substrate, fish or water surface.
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