CO2 Equipment Questions - Page 3 - The Planted Tank Forum
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post #31 of 43 (permalink) Old 01-08-2021, 07:40 PM
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What about using something like K1 in there? I have a bunch of that I'm not using right now.
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post #32 of 43 (permalink) Old 01-08-2021, 07:41 PM Thread Starter
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I dont know why I didn't do this sooner.

I didnt check the outside dimensions of the 20x4.5. Theyre bigger than the outside dimensions of the 20x2.5. Welp, I made a mistake. I got ahead of myself and just assumed rather than taking 2 extra minutes to double check.

I hope someone can learn from mistake.

I canceled my order on the 20x2.5, and ordered a 20x4.5. There was an option to get it "Used, Very Good" which made it cheaper and just barely within the budget, so im glad it worked out.

Thank you guys for all your help and patience with me as I learn.

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post #33 of 43 (permalink) Old 01-08-2021, 07:51 PM Thread Starter
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Originally Posted by Hemp111 View Post
What about using something like K1 in there? I have a bunch of that I'm not using right now.
Again, im still learning about this, so im only speaking from what I learned through research and watching/learning from some experienced aquarists.

I think it K1 media should work. It'll provide a physical substance to break apart the bubbles, and also provide additional bio filtration. I've seen people put in those bio-balls, so it doesn't seem to me that what you put in there is super important.

The reason I'm gonna be using sponge and lava rock is not because I think it's superior, but because it's what I have on hand and don't have to buy extra. And lava rock for me was less than $5 for 50lbs at Homedepot. So I bought two bags.

I used up 1 bag already cayse I used about 60% in my scape to put under the substrate (to help prevent ammonia pockets from top thick of a substrate level, and also extra bio-filtration cause it's heavily porous so lots of surface area for beneficial bacteria to grow). The remaining 40% of the first bag i put into different tanks in mesh/netted bags so that I can jump start my 125 and make the cycling period shorter. I'll just put the bags of lava rock in th3 sump and then pour in loose lava rock (from the 2nd bag) to fill in the remaining space.

Sorry, I went a little off topic, but to come back around, in my inexperienced yet researched opinion, I think K1 would work great.

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post #34 of 43 (permalink) Old 01-08-2021, 07:52 PM
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i'm curious if there's really any net benefit to putting media in your co2 reactor.

part of the beauty of a cerges reactor is that it's largely a maintenance-free device. if you put media in there - especially sponges - you're going to have to clean it out regularly and your flow will degrade as the media get clogged. just an open space for bubbles to churn but not escape is all that's really needed.
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post #35 of 43 (permalink) Old 01-08-2021, 07:55 PM Thread Starter
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i'm curious if there's really any net benefit to putting media in your co2 reactor.



part of the beauty of a cerges reactor is that it's largely a maintenance-free device. if you put media in there - especially sponges - you're going to have to clean it out regularly and your flow will degrade as the media get clogged. just an open space for bubbles to churn but not escape is all that's really needed.
Mmm. Interesting. I didnt know that reactors were purposed for being little to no maintenance. I specifically wanted to put sponges to help filter out some of the stuff that got missed in the sump filtration.

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post #36 of 43 (permalink) Old 01-08-2021, 07:59 PM
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Mmm. Interesting. I didnt know that reactors were purposed for being little to no maintenance. I specifically wanted to put sponges to help filter out some of the stuff that got missed in the sump filtration.

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i would caution against trying to double purpose your co2 reactor as additional mechanical filtration. i think it will only add maintenance for you and has the potential to induce inconsistency in your co2 infusion rate.
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post #37 of 43 (permalink) Old 01-08-2021, 07:59 PM Thread Starter
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https://www.google.com/amp/s/www.pla...r.html%3famp=1

I found this thread about media in a reactor

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post #38 of 43 (permalink) Old 01-08-2021, 08:19 PM Thread Starter
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i would caution against trying to double purpose your co2 reactor as additional mechanical filtration. i think it will only add maintenance for you and has the potential to induce inconsistency in your co2 infusion rate.
Yea, I agree. And now im thinking of building my own housing instead of buying one. Here's a YouTube link to a video I saw a while ago which I think I might base my build off of.



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post #39 of 43 (permalink) Old 01-09-2021, 12:02 AM Thread Starter
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ok,
I think i created 2 possible designs for a diy PVC reactor.

Which do you guys think will be a better design for optimal diffusion?
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post #40 of 43 (permalink) Old 01-09-2021, 01:42 AM
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I'd say the flow pattern of #1 with the co2 injection point of #2.

Edit: if you inject the co2 at the bottom of a Cerges it will immediately get sucked out of the reactor. You want to force the bubbles to churn high in the reactor and only be able to get near the bottom once they're quite small.
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post #41 of 43 (permalink) Old 01-09-2021, 03:17 AM
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This comes up over and over every few years. The Cerges and Rex Griggs reactors are proven designs, and every little nuance is there for a reason. This might not be the thing to be experimenting with... the odds are far greater that you'll end up creating a worse light bulb =(

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post #42 of 43 (permalink) Old 01-09-2021, 04:44 AM
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Originally Posted by NapTeamCaptain View Post
From what I've seen, people fill up the housing a type of media of their choosing. I plan on taking a sponge that ill cut to size for a disk or two, and then fill the rest of the housing with small lava rocks. Im gonna try about 1/3 sponge and 2/3 lava rock.

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I had a lot of success with getting 100% co2 absorption with nothing in the reactor. The churning motion at the top of the filter housing was enough to dissolve everything without pushing any bubbles to the bottom.

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Originally Posted by jellopuddinpop View Post
CO2 will simply dissolve in water, as long as there is enough surface area of the gas bubbles (diffuser), or there is something that keep the bubble tumbling in current (reactor). The purpose of this discussion is that there needs to be the correct amount of water flow for the amount of CO2 you're injecting. Too much flow, and the water pushes the bubbles out of the reactor. To little flow, and the bubbles gather into a pocket at the top of the reactor.
This.
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post #43 of 43 (permalink) Old 01-09-2021, 05:35 AM
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[IMG]DIY Co2 reactor by Ravs Rect, on Flickr[/IMG]


I built this based on REX design...
I know you guys have moved forward with Cerges design... I just saw this thread and thought of sharing it incase anyone wants to try it out.

THis was also simple Home Depot and Lowes stuff..
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