Inline diffuser/reactor for an Eheim 2217
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Old 03-18-2013, 07:25 PM   #1
HybridHerp
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Inline diffuser/reactor for an Eheim 2217


Yah, I've decided that doing something inline is better. Thing is, what's a good thing I can buy? I'm not about to make a reactor for myself since I don't trust myself to do it nor do I have the time to make a thing, but I'm all for buying something.
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Old 03-18-2013, 08:24 PM   #2
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Aqua medic 1000 is a great reactor but pricy. Not too up on the inline diffusers but seem risky to me.
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Old 03-18-2013, 09:24 PM   #3
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I recommend the gla inline diffuser depending on your co2 output pressure.
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Old 03-18-2013, 09:24 PM   #4
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Pretty sure you can make a cerges style reactor with almost zero DIY. Get a filter housing and barbed fittings and you're good to go.

http://www.plantedtank.net/forums/sh...d.php?t=110100
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Old 03-18-2013, 09:40 PM   #5
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Originally Posted by meppitech View Post
I recommend the gla inline diffuser depending on your co2 output pressure.
I run like, 38 psi. And which size would I get for an Eheim 2217?
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Old 03-18-2013, 09:45 PM   #6
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Reactors are pretty fool proof to make, even though I haven't made one, you are using materials rated for much more pressure than you would ever put through them, using materials that see far more abuse for their regular use. They are also really easy to make and all the special tools you need are pretty cheap. Not encouraging you to make one but just stating it shouldn't be too much of a challenge, even for the not so mechanically inclined.

Most the off the shelf ones are the same as what you would make, more or less so you are just spending extra money on not making one. There are two designs, the "Rex Grigg" and the "Cerges" style. I have only heard bad things about one inline and I forget which it is (Maybe the ISTA one, not sure). I know it's one of the super cheap ones, I believe the plastic is thin and can break.

The main downside of a reactor is the size of it. For me, I couldn't fit one under my stand without compromising a lot of room and having an odd plumbing situation. If I add another canister, I will go with a reactor but I just can't fit one right now without some crazy looping going on.


As for diffusers, you either have a inline ceramic one that has a glass housing, or an atomic style one that is plastic, and requires adjustable working pressure. The inline glass ones are similar to a glass intake diffuser, just inline. The downside is that they are expensive and fragile. The atomic style are much cheaper but require a higher working pressure. I haven't seen cases of these breaking on their own but I have my own concerns with mine, the plastic is not thick and between the high working pressure seemingly lower quality, I will likely begin replacing mine every few years.


I know I am not giving a specific recommendation because they all have their pro's and con's. I would go with a Cerges style reactor if space wasn't an issue. You can DIY it really easily, or their are some for purchase with the same style and fittings so you can replace them if something breaks. If you want a diffuser or need the space, that's a bit tougher because the glass ones are up to 4-5x more expensive than the plastic atomic ones and though they likely last longer, they are far easier to break yourself, but likely more durable in operation. I would just go with 2 atomic style from GLA and have the ability to swap one out when cleaning for less money.
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Old 03-18-2013, 09:49 PM   #7
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Quote:
Originally Posted by talontsiawd View Post
Reactors are pretty fool proof to make, even though I haven't made one, you are using materials rated for much more pressure than you would ever put through them, using materials that see far more abuse for their regular use. They are also really easy to make and all the special tools you need are pretty cheap. Not encouraging you to make one but just stating it shouldn't be too much of a challenge, even for the not so mechanically inclined.

Most the off the shelf ones are the same as what you would make, more or less so you are just spending extra money on not making one. There are two designs, the "Rex Grigg" and the "Cerges" style. I have only heard bad things about one inline and I forget which it is (Maybe the ISTA one, not sure). I know it's one of the super cheap ones, I believe the plastic is thin and can break.

The main downside of a reactor is the size of it. For me, I couldn't fit one under my stand without compromising a lot of room and having an odd plumbing situation. If I add another canister, I will go with a reactor but I just can't fit one right now without some crazy looping going on.


As for diffusers, you either have a inline ceramic one that has a glass housing, or an atomic style one that is plastic, and requires adjustable working pressure. The inline glass ones are similar to a glass intake diffuser, just inline. The downside is that they are expensive and fragile. The atomic style are much cheaper but require a higher working pressure. I haven't seen cases of these breaking on their own but I have my own concerns with mine, the plastic is not thick and between the high working pressure seemingly lower quality, I will likely begin replacing mine every few years.


I know I am not giving a specific recommendation because they all have their pro's and con's. I would go with a Cerges style reactor if space wasn't an issue. You can DIY it really easily, or their are some for purchase with the same style and fittings so you can replace them if something breaks. If you want a diffuser or need the space, that's a bit tougher because the glass ones are up to 4-5x more expensive than the plastic atomic ones and though they likely last longer, they are far easier to break yourself, but likely more durable in operation. I would just go with 2 atomic style from GLA and have the ability to swap one out when cleaning for less money.
insight full response. Yah, space is a bit of an issue and I don't want to build a thing due to time constraints.

I'll probably stick with an inline GLA, then see where that takes me.
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Old 03-18-2013, 09:55 PM   #8
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Quote:
Originally Posted by HybridHerp View Post
insight full response. Yah, space is a bit of an issue and I don't want to build a thing due to time constraints.

I'll probably stick with an inline GLA, then see where that takes me.
Just make sure you have a regulator with adjustable working pressure. They recommend 30 psi, I run mine at 40. Also, make sure you use quality CO2 tubing as well as the higher pressure can make cheap airline hoses pop off. If you regulator was assembled properly you are good but some people who DIY'd there regs found they started to get leaks, including myself, when jumping up 30 psi. Easily corrected but if you don't catch any of these, you are in for a quick refill. I love mine though and haven't had issues in over a year.
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Old 03-18-2013, 10:04 PM   #9
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Default Inline diffuser/reactor for an Eheim 2217

I run my reg at like 40 as it is lol
So I should be fine :P
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Old 03-18-2013, 10:34 PM   #10
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Also, be advised, with an inline diffuser your tank will look like a glass of 7up. Some people don't mind, I find it extremely annoying. Good luck with whatever you decide.
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Old 03-18-2013, 11:07 PM   #11
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Also, be advised, with an inline diffuser your tank will look like a glass of 7up. Some people don't mind, I find it extremely annoying. Good luck with whatever you decide.
wait, what does that mean exactly?
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Old 03-18-2013, 11:11 PM   #12
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Quote:
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wait, what does that mean exactly?
Bubbles in the tank. For me, I don't really get it that bad after I switched to lily pipes but I did with a spray bar.
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Old 03-18-2013, 11:12 PM   #13
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Oh, tbh idc about bubbles in the tank. I kinda like them actually.
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