3D Printed Aquarium CO2 Diffuser

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3D Printed Aquarium CO2 Diffuser!

Design 3D models: https://www.tinkercad.com/

Powerhead used: http://amzn.to/1MdlBNC

Desktop 3D Printer: http://amzn.to/1IUl6J4

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Bobby T says:

I love how you 3D printed it

peggysplanted says:

Nice, never thought of that. I have access to a 3D printer and I learned how to design models. Might want to give it a try if I have time… Great video and idea!


+ADU Aquascaping Thanks bro! Check out the link in the descrip. for the free software I used to make it, its pretty intuitive. I dont know if there is a service like that, my college has a 3D printer in the library that anyone can use as long as its “school related” ha. When you make a design you can save it on the site under your profile and also can export the 3D file as a.svg file. you can just save those files and use them for printing on pretty much any printer when you get a chance. 

MadChris48 says:

So, 8 months in; how is it holding up? I’m assuming it was printed with PLA. I work at a company that sells 3D printers and does design work. I’ve wanted to put 3D printed parts in the tank for various purposes but I’m worried about the plastic breaking down and leaching toxins in my tank. What input do you have on the safety of the plastics to the fish and durability of the part in the tank for extended periods?

Touhin Mohammed says:

I got my hand on a 3d printer for a week hopefully I have enough time to set it up and try something like this

Ivan Ku says:

Hey, I have also just 3D printed a surface skimmer which is attached to a standard HOB filter, thus, extending its functionality.

Jake White says:

Nice man! Gonna get one printed for myself very soon! May tweak some and make walls less thick.

sedghammer says:

Looks cool, but I’m all for glass because the transparency won’t take away from the overall aesthetic like plastic does.

Jimmy Xic says:


Charles H says:

Will this work with 4 or 5 inch PVC?
Be Well

Ryan Pearce says:

I am getting a turtle and I want to save as much of my allowance as I can. Turtles need floating docks for basking, do you think it is safe to 3d print to make it? Like safe for the turtle. I am using my neighbor’s 3d printer.

seanlovesjobo says:

how much are you paying for prints?

The Fish Closet says:

Now see, thats what im talkin about, nice product!

csabcsaa says:

Hi! I realy appreciate this content!
I’m running a 300L aquarium connected to a basic aquaponics setup. I also have a 3d printer too, and I’m planing to design and print a few aquarium filters and accessories. I would have a few questions if I may. I hope You can answer them.

1, What type of plastic filament did you use for the 3d printed part?
2, Did You prepared the printed plastic part in any way (like soaking in water to remove any leeching material)?
3, I noticed this video is over 2 years old now. Did you notice any problems with Your fish because of the plastic part in the water? Like mortality, odd behaviour, or birth defects when or if the fish are spawning?

Thanks in advance for the valuable information.

Have a nice day!

RR26 says:

There is a chance that air, maybe fishes get into the diffuser, especially DIY CO2. There is no easy way to release air out of the diffuser.

I don’t see the value of 3D print here. A cheap plastic bottle would do the same thing within minutes and it is clear to see what is happening inside.

jackfoo2 says:

if i was expanding on your idea id but swirls coming off the side creating a swirling with periodic sticks to disrupt the spin a little if you can get the water to spin like a cyclone it will max the contact time . i dont like the balls unless thay are able to move around freely

Bruce Campbell says:

impressive defuser very intereptingwill try that myself ,think we could
do it with PVC.? thanks mike

Rico Suave says:

If 3d printing gets faster production time then I think a diyer will be self sufficient in this hobby

RoboTekno says:

I’m guessing this is a proof of concept project, but you could have made the same thing from a few pieces of PVC pipe, epoxy, and a hand drill.

Although material costs are low for 3D printing, unless you already own a 3D printer, the production costs can be rather high. The next time you design a 3D part, add some complexity to your model. Maybe put in some baffles or some artistic design. 3D printing just a couple cylinders is kind of a waste and a fraction of a 3D printer’s potential, haha.

But like I said, I do feel this is a nice proof of concept. It could be interesting to see more parts made. Maybe some 3D printed filter parts, pump impellers, filter media cages, etc.? Perhaps you could design some kind of crazy plastic filter media that can only be made by a 3D printer, haha.

Also remember to clean your 3D parts thoroughly before putting them in a fish tank. Depending on the manufacturing processes and brand of 3D printer, some printers require their parts to be soaked in chemicals to dissolve and get rid of the bridging and support material. Also the plastic itself may degas over time.

Niall F M says:

I must say I never even thought of mixing 3D printing and aquariums, with endless opportunities I expect some amazing videos.
I myself am doing a course where I use CAD loads so in the nicest way I can possible say it your design is a bit too basic GO WILD WITH THE DESIGNS!

Marlon Jimenez says:

This is revolutionary

Fancy Shrimp says:

Awesome idea. I think Ill be trying this, will share the design files on Thingiverse

wyzemann says:

3D printing parts for HOB filters could be revolutionary.  I’ve purchased a roll of mechanical filter to cut and shape to my specifications.  My only gripe is that my Penguin HOB’s flow typically distorts the filter and restricts detritus to the top half of the filter.

Now I know that egg crates can be used to keep the filter in place, but wouldn’t it be more efficient (not to mention just plain cool) to print one to exact specifications?

If you don’t mind showing how to 3D print a mech filter cartridge/holder to fit various HOB, then I’ll be a huge believer in this promising tech.

Wolf3nStein says:

I am not sure if you reply to this comment but just a quick question. Which 3d printer cartridge did you use? ABS / PLA / PVA? It should be non toxic as fishes are doing well and also props for the great work you have done in 1st project of 3d printing.

Dracula Reloaded says:

just add gravel on bottom instead of those balls at least 2 inch thick it will catch all bubbles and will allow to diffuse again .

Dracula Reloaded says:

actually 3d printing will destroy many business around aquarium hobby

Daniel Boyer says:

3D printing plus Aquariums can only lead one place: Sharks with Lasers!!!  Please stop the madness now before it is to late!!!

glance302 says:

Awesome use of new technology in the hobby.  Bravo!!!

Armando Daniel Lovera Mandujano says:

Wow, really amazing. Excellent videos!

Pondguru says:

Wow that is awesome, man.
I’m thinking of the possibilities for moving bed filters but I know absolutely nothing about design – bit like Tesla in that respect as the most I ever plan is a few obscure scribbles on paper, lol
Great use of 3d printing.

ADU Aquascaping says:

Wonderful man. Great job. I have been wanting to do some 3D stuff, but I have no printer. Is there a place where you can design something and then they make it and ship it to you? Great work.

prithvi shetty says:

U can attach a motor with a propeller in that container the propeller could be made of a material which lets bacteria grow in it and you can also make the propeller a bit thick and throw in some k1 or light media

Neobaneo says:

Be careful cause some 3D print plastics can contain heavy metals

dan110024 says:

That’s great. If 3D printers do become a house hold item, I think it definitely could revolutionise the diy projects of aquariums. If not, there will at least be a good amount of information for people wanting to print their own parts on aquarium forums. The parts will only get better once people learn what is and what isn’t possible with consumer 3D printers.

Mick Holz says:

thats a really nice idea. but why did you insert the co2/water in the upper part ? how should the bubbels exit out of the lower hole when they get always pushed up? wouldnt it be easier to flip the whole unit, so that the bubbles enter in the lower part, then get difused and exit above? 

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