fluval external setup - The Planted Tank Forum
 
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post #1 of 12 (permalink) Old 08-28-2013, 01:18 PM Thread Starter
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fluval external setup

Hey,

I recently received a fluval external filter and will shortly receive an inline CO2 diffuser and a heater.

Does the order matter in which I connect them, as long as they are on the exit line ?
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post #2 of 12 (permalink) Old 08-28-2013, 03:05 PM
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Cooler water holds gasses more readily, but I don't know if it would really matter, I don't have anything inline...
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post #3 of 12 (permalink) Old 08-28-2013, 04:07 PM
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Don't think so... On my 306 I have Filter > Heater > Diffuser, just because I figured the gas would be cooler (being compressed) and may cool water a little before passing over the thermometer in the ETH Heater...
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post #4 of 12 (permalink) Old 09-04-2013, 01:20 AM Thread Starter
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Would placing the reactor on the intake be a smart thing?
How do impellers handle slight bubbles and how to nitrobacteria like CO2 ?
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post #5 of 12 (permalink) Old 09-05-2013, 12:08 AM
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I would think that heating the bubbles would make them expand. also you don't want gas around the heater when the system shuts off.

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post #6 of 12 (permalink) Old 09-05-2013, 02:10 AM
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I would think that at the rate which the heater heats the water and the rate at which water moves through the heater (really quite fast), that any effect the heat has on anything is probably pretty negligible. My heater is last because it physically fit easier that way under my tank. I get zero bubbles in my tank with my Cerges reactor.

For me: In Flow Lily Pipe > Filter > Cerges CO2 Reactor > Heater > Out Flow Lily Pipe
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post #7 of 12 (permalink) Old 09-05-2013, 05:18 AM
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Quote:
Originally Posted by clusty View Post
Would placing the reactor on the intake be a smart thing?
How do impellers handle slight bubbles and how to nitrobacteria like CO2 ?
No. The CO2 bubbles will cause problems with your impeller.

Everything should be attached to the return line.

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post #8 of 12 (permalink) Old 09-05-2013, 04:09 PM
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Quote:
Originally Posted by clusty View Post
Would placing the reactor on the intake be a smart thing?
How do impellers handle slight bubbles and how to nitrobacteria like CO2 ?
No, you want clean water going through diffuser. EVERYTHING, actually, but especially diffuser.

Last edited by Nightspell; 09-06-2013 at 05:07 PM. Reason: edit
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post #9 of 12 (permalink) Old 09-10-2013, 04:21 AM Thread Starter
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Looks like I got by mistake 12mm Co2 diffuser and glass in/outflow glass pipes.
Think they are going to have a huge negative effect on the flow rate?
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post #10 of 12 (permalink) Old 09-10-2013, 09:45 AM
dre
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yup, thats definitely going to slow down your flow.

I have my Co2 reactor first on my outflow pipe then the heater. The reason I did that is so the bubbles from the reactor have the most amount of time in the tubes before hitting the aquarium, I don't know if it helps or not but just seemed to make sense to me that the longer they are in the outflow tube the more delusion i am getting...
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post #11 of 12 (permalink) Old 09-10-2013, 02:25 PM
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Quote:
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the more delusion i am getting...
thanks Dre, that's one auto-correct that made me laugh (and I can identify with)
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post #12 of 12 (permalink) Old 09-10-2013, 06:22 PM
dre
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lol, woops... I mean diffusion
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