LOL perhaps we should come up with another name for this club as it leads to various interpretations!I know of 200++ PAR club but not the 30 min club. Wish me luck! I maybe joining the 30 min club very soon.
I'm a member.
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Horizontal CO2 Reactor - Yugang 鱼缸 Reactor
- Thread starter Yugang
- Start date
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Today I had to decrease my CO2 for a recently added sensitive fish. But I just want to show everyone how freaking stable my CO2 is with Yugang reactor version 3. I’m just dumbfounded by the performance of an @Alanle regulator and a @Yugang reactor V3.
toofewfish
Community Member
What pH system are you using that you are getting the graphs from?
Coralvue Hydros
Having quality equipment is a beautiful thing.
Sternla
Community Member
After learning some details from @Unexpected i plan on building the reactor. My tank is the standard 75, 48 x 18 x 21. I plan on doing a 36” under cabinet mounted using 2” pvc. Hopefully I can get to a plumbing supply tomorrow to get started. I will soon have a freed up eheim 2213 to drive it. Debating on adding a controllable bypass using a shutoff type valve to help control flow if needed. Let me know your thoughts on how necessary this might be for me. The 2213 is a pretty low flow filter. I would remove everything from the canister except maybe the tube like media. The tank has a 2217 for the filtration.
What sort of gph are we looking for? I saw gentle mentioned.
A bypass is a good idea just in case you hear a bit if trickle noise coming from the reactor. A gentle flow is all that’s needed. For my version 3 build, I opted for a DC motor (Mighty Jet mini). It comes with a simple controller and offers 160gph to 266gph. I tried max flow and the reactor is dead silent.
BigWave
Well-known Member
Finally got around to making a small Yugang Reactor with parts laying around. This will go into the UNS 60U setup whenever I get around to getting that tank up and going. I wanted a clear reactor and searching all over the internet and seeing how prices are outragious for clear PVC pipe. About $40 per foot, then shipping. Guess you could call this a proof of concept for when I build a big one for the 93 gallon tank.
FYI save all that fish junk because you never know when that piece will come in handy.
Parts List:
2x 1/2" 90 degree threaded to barb elbows - Junk Drawer
2x 2" endcaps with 1/2" threaded holes - Ace Hardware
1/2" x 3 feet clear vinyl tubing - Junk Drawer
1x Imagitarium Aquatic Gravel Vacum, Medium (2" diamater x 10" length) - Junk Drawer og from Petco
1x Can clear PVC Cement - Junk Drawer
6" CO2 Rated Air Line hose - Junk Drawer
1x M1 12/16mm Qanvee CO2 Inline Atomizer - Junk Drawer og from Ebay
2x 12/16 Eheim Double Taps - Junk Drawer og from Ebay
Notes: The items that cost the most in order of lowest to most expensive would be the Gravel Vac +- $17, Diffuser +- $30, Double Taps 2x @ $25 each.
Assembly is pretty straight forward. Take the end piece off of the Gravel Vacuum. I had to sand down the end caps with 250 grit sand paper just a little to make a snug tight fit. Glue these on with the PVC Cement. From there its general assembly putting everything together.
Dimensions:
UNS 60U - 23.62" L x 14.17" W x 14.17" H (600mm L x 360mm W x 360mm H)
Yugang CO2 Reactor 2" Diameter x 10" Long
I have not calculated anything as far as internal volume and how much CO2 it can hold etc. Thats for another time...
FYI save all that fish junk because you never know when that piece will come in handy.
Parts List:
2x 1/2" 90 degree threaded to barb elbows - Junk Drawer
2x 2" endcaps with 1/2" threaded holes - Ace Hardware
1/2" x 3 feet clear vinyl tubing - Junk Drawer
1x Imagitarium Aquatic Gravel Vacum, Medium (2" diamater x 10" length) - Junk Drawer og from Petco
1x Can clear PVC Cement - Junk Drawer
6" CO2 Rated Air Line hose - Junk Drawer
1x M1 12/16mm Qanvee CO2 Inline Atomizer - Junk Drawer og from Ebay
2x 12/16 Eheim Double Taps - Junk Drawer og from Ebay
Notes: The items that cost the most in order of lowest to most expensive would be the Gravel Vac +- $17, Diffuser +- $30, Double Taps 2x @ $25 each.
Assembly is pretty straight forward. Take the end piece off of the Gravel Vacuum. I had to sand down the end caps with 250 grit sand paper just a little to make a snug tight fit. Glue these on with the PVC Cement. From there its general assembly putting everything together.
Dimensions:
UNS 60U - 23.62" L x 14.17" W x 14.17" H (600mm L x 360mm W x 360mm H)
Yugang CO2 Reactor 2" Diameter x 10" Long
I have not calculated anything as far as internal volume and how much CO2 it can hold etc. Thats for another time...
Sternla
Community Member
That is an in-line c02 diffuser. I think he said he had the quanvee. It’s an easy way to get the c02 to enter into the reactor chamber. Presumably he will remove the ceramic diffuser portion. I think those just pop out if you unscrew the clear part.
Thank you @Sternla. On my build i will use that exact part or something similar.
I removed the ceramic diffuser in mine. You want big bubbles going in so they don’t blow out through the reactor.
FrankZ
Well-known Member
I’m interested in trying one of these @Yugang horizontal reactors. I have the exact same dimension tank as @Sternla, so I have a few questions.
What pH drop does this size reactor produce? I understand the calculations to come up with the surface area needed, I’m just not certain what the target is from the calculations. Is that 17.7 factor specifically for a 1.5 ph drop?
How do I determine the flow rate of CO2? I assume using a flow meter and pH profile same as with out.
Will this work with just my FX4 canister output driving it? I do not have space for a second canister so I would prefer to use the FX4. I plan to mount this to the back of my wooden canopy due to space. I do not see any reason why either of these would be an issue but I needed to ask for peace of mind.
Based on the previous posts, I think I will need to have a bypass on the reactor to slow the flow down, is this correct?
Sorry for all the question but I’m hoping this helps me stabilize my CO2 better.
Thats what the 17.7 factor is based on, to achieve a 1.5 drop.
I’m fairly sure thats what this means.
I’m fairly sure thats what this means.
FrankZ
Well-known Member
Thank you. I have read this whole thread a number of times and somehow missed that part. I need to take notes
It will drop the tank by roughly 1 pH. From my observation, this accounts for tank high pH to lowest pH, but doesn't illustrate the degassed high pH. My degassed pH is higher than my tank high pH. My degassed pH is around 6.5, so my reactor does indeed drop the tank by 1.5 (or more) but the actual tank change is a 1 pH drop. I use a controller to regulate CO2 and I purposely hold pH at 5.1 and my fish stressed at 4.97.
Correct, or you can make the length and diameter achieve the desired drop and run the reactor in overflow mode (CO2 will purge from the reactor after a desired pH drop and be incapable of lowering pH any further).
I would higly recommend a bypass, the FX4 produces a good amount of flow and you just want a gentle flow through the reactor.
Don't apologize, this is a new concept and we are all here to help.
Last edited:
Sternla
Community Member
Sternla
Community Member
Pvc glued today. Waiting on Amazon to deliver 1/2” t’s so I can add a simple bypass to control flow with the cutoff valve. Still deciding best way to mount under the stand. Build shelf or just use some type of pvc adapter to attach directly to stand.
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