my DIY CO2 reactor/diffuser for HOB filter NEW VERSION - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 03-14-2013, 01:52 AM Thread Starter
Algae Grower
 
Join Date: Feb 2013
Location: USA MD
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my DIY CO2 reactor/diffuser for HOB filter NEW VERSION

I've previously posted my design of CO2 reactor/diffuser which inserts into outlet of HOB filter.

my DIY CO2 reactor/diffuser for HOB filter


Since then I made new improved version of reactor.

Improvements:

1. Reactor is much taller and water outlet is horizontal and turned sideways so water circulates across the whole aquarium.

2. CO2 inlet port is at the bottom so you can see bubbles coming up.

3. It incorporates BIO ball. (If CO2 bubble gets big enough, bio ball should rise and starts dissolving it (this didn't happen so far))

4. All action is under water level of aquarium and you can clearly see what is going on.

5. Top portion of reactor is much narrower and lets aquarium lid to close.
while bottom part (which is under water) is big enough for BIO ball to fit.

please see pictures and short video.

Video:
http://youtu.be/--7JP78yW4U



Pictures:
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Last edited by Sar315; 03-31-2013 at 09:41 PM. Reason: New good video displaying rector and all process in details uploaded
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post #2 of 5 (permalink) Old 03-14-2013, 02:10 AM
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That's pretty slick. Not convinced you need the bio ball though.
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post #3 of 5 (permalink) Old 03-14-2013, 02:14 AM Thread Starter
Algae Grower
 
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Quote:
Originally Posted by xmas_one View Post
That's pretty slick. Not convinced you need the bio ball though.
In the previous version pretty big CO2 bubble accumulated inside, so in this version I put BIO ball. So far I didn't get bubble and ball doesn't do anything useful - just rotates inside.
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post #4 of 5 (permalink) Old 03-14-2013, 01:47 PM
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What are you using to glue the acrylic together? I've tried several glues and silicone, but always end up with a mess.
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post #5 of 5 (permalink) Old 03-14-2013, 03:44 PM Thread Starter
Algae Grower
 
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Location: USA MD
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Quote:
Originally Posted by Indychus View Post
What are you using to glue the acrylic together? I've tried several glues and silicone, but always end up with a mess.
I used Weld-On. About $13 on ebay for a kit.

[Ebay Link Removed]

Instructions:
http://www.mpdacrylics.com/acrylic-d...lays-step4.php
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