Fluval with Inline attachments - The Planted Tank Forum
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post #1 of 3 (permalink) Old 02-19-2020, 10:50 PM Thread Starter
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Fluval with Inline attachments

Hello everyone, I just purchased a new fluval 406 to replace my old one. Also, I began injecting CO2 and have experienced bad bba all of a sudden with the addition of the CO2 via in tank diffuser. I was hoping to combat this by adding an inline diffuser to achieve a more steady distribution. Is there any safe way I can add an inline diffuser to the ribbed tubing of the fluval? Should I return the fluval while its still in the box? If retrofitting the 406 is too much of a pain would canister is around the same price point that lends itself to these types of applications? Thanks!
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post #2 of 3 (permalink) Old 02-20-2020, 07:15 PM
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I think everything I’ve ever seen of people doing it switch the tubing out. I certainly wouldn’t trust those rubber fittings underneath my tank. The ones that connect to the aqua stop make me nervous enough.

I think a lot of people are using the Eheim 5/8 tubing with the Hydor heater
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post #3 of 3 (permalink) Old 02-20-2020, 07:30 PM
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I use Fluval's regular ribbed tubing with inline CO2 diffusers. You'll just need to get the rubber adapter in your size hose. My 205 uses this one: https://www.amazon.com/gp/product/B0006JLOCI Or you can just change out the hoses completely if you'd prefer.
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