Tiny super efficient CO2 reactor - Page 9 - DIY Aquarium Projects - Aquatic Plant Central

Go Back   Aquatic Plant Central > General Interest Forums > DIY Aquarium Projects

DIY Aquarium Projects For those that are handy or looking to save some money, discuss your DIY aquarium projects here.

Reply
 
LinkBack Thread Tools Display Modes
Old 06-06-2008, 03:32 PM   #81 (permalink)
Senior Member
 
Join Date: Jun 2008
Posts: 140
iTrader Ratings: 3
iTrader Positive Rating: 100%
Brendan Redler is a regular member
Default Re: Tiny super efficient CO2 reactor

I was under the impression that the sponge helped. The idea behind it is that the bubbles get caught and get new water over them constantly so that they dissolve completely.

There are still bubbles getting out, even with the sponge and I would imagine that you will have similar performance with or without the sponge. I just like to keep more of the bubbles out of the water.

I can see the point of seeing the CO2 bubbles on the plants being visual reassurance of direct delivery, but I don't like the looks of a "misted" tank all that much. But in regards to a finer sponge catching the bubbles...if I know there is CO2 going into the diffuser and I don't see any coming out...it has got to be dissolving. Ergo, the fewer bubbles I see the better, IMHO.
Brendan Redler is offline   Reply With Quote

Advertisement [Remove Advertisement]
Old 06-06-2008, 08:09 PM   #82 (permalink)
Senior Member
 
ericpop27's Avatar
 
Join Date: May 2008
Location: Columbus, GA
Posts: 166
iTrader Ratings: 0
ericpop27 is a regular member
Default Re: Tiny super efficient CO2 reactor

I ended up taking the sponge off. Then I started a new Sugar/Yeast recipe from another thread I found here and I upgraded to a Penguin 660 pump ($20 at Wal-Mart). The results are amazing.
ericpop27 is offline   Reply With Quote
Old 06-07-2008, 04:30 AM   #83 (permalink)
Senior Member
 
Join Date: Jan 2004
Location: Dallas, TX
Posts: 4,111
iTrader Ratings: 24
iTrader Positive Rating: 100%
niko is a regular member
Default Re: Tiny super efficient CO2 reactor

With a sponge on the outflow the performance is actually MUCH better. If you get too many bubbles coming out of the sponge then you are injecting too many bubbles and the pump/sponge combination doesn't have enough time to disolve them all so some get expelled.

One if these reactors is enough for a 75 gal. tank with tons of light with a bubble rate of about 2 bubbles per second.

Without a sponge the tiny bubbles fly everywhere and make the water look not completely clear. Plus a lot of them get wasted. If you add a sponge in front of the same pump you will need to reduce the CO2 bubble rate about 30 to 50%. Impressive savings.

--Nikolay
niko is offline   Reply With Quote
 
Old 06-07-2008, 04:32 AM   #84 (permalink)
Junior Member
 
Join Date: Apr 2008
Posts: 19
iTrader Ratings: 0
Turtl3boy21 is a regular member
Default Re: Tiny super efficient CO2 reactor

Hm so i guess the question is if c02 is better dissolved or if its better micro bubbled. Like a reactor vs a bubble ladder.

Does this kind of make since? xD
Turtl3boy21 is offline   Reply With Quote
Old 06-07-2008, 09:43 AM   #85 (permalink)
Moderator
 
hoppycalif's Avatar
 
Join Date: Apr 2005
Location: Brentwood, CA, USA
Posts: 6,771
iTrader Ratings: 22
iTrader Positive Rating: 100%
hoppycalif is a valuable member of the community hoppycalif is a valuable member of the community hoppycalif is a valuable member of the community
Default Re: Tiny super efficient CO2 reactor

There are some advantages to having CO2 mist in the tank vs. having all of the CO2 dissolved before it enters the tank. The primary advantage is that so many of us tried this and got better results with the plants. A secondary advantage is that the fish are very sensitive to excessive dissolved CO2, but not necessarily to microbubbles of CO2 in the water. So, you can get more CO2 available to the plants with CO2 mist.

It is still a personal choice issue. Many of us don't like the seltzer water appearance you can get with CO2 mist, and it does use more CO2. I have used both the CO2 mist and an external reactor. Both work. Right now I have one of these little reactors set up in my 46 gallon tank, with a Koralia powerhead above it to catch and blow around any bubbles that escape, and lots do. It's too soon to say if this is working well or if I really like it.
hoppycalif is offline   Reply With Quote
Old 06-07-2008, 01:57 PM   #86 (permalink)
Senior Member
 
Join Date: Jun 2008
Posts: 140
iTrader Ratings: 3
iTrader Positive Rating: 100%
Brendan Redler is a regular member
Default Re: Tiny super efficient CO2 reactor

I have it set up in my tank right now (about 24hrs ago) and my plants are already showing improved growth. Noticeable new green material and pearling. The sponge is on the outlet, but it is still belching a fine mist with each bubble from my DIY CO2 generator. To tell you the truth, I actually kind of like the micro bubbles that I'm getting, because there aren't enough of them to cloud the water badly and it is kind of a reassurance that there's CO2 going directly to the plants. For the plants only having been in the tank two days and an efficient diffuser for one, they are noticeably greener and have clear new growth.

I'll take pics and update...maybe start a journal.
Brendan Redler is offline   Reply With Quote
Old 06-07-2008, 07:00 PM   #87 (permalink)
Junior Member
 
Join Date: Apr 2008
Posts: 19
iTrader Ratings: 0
Turtl3boy21 is a regular member
Default Re: Tiny super efficient CO2 reactor

I have another "what is better" questions xD

A ceramic disc diffuser or the one on this thread?

About ceramic diffusers, does it dissolve c02 or mist? I know that tiny bubbles come out of the disc but i am under the impression that the bubbles are so small it dissolves before it hits the surface.
Turtl3boy21 is offline   Reply With Quote
Old 06-07-2008, 09:35 PM   #88 (permalink)
Moderator
 
hoppycalif's Avatar
 
Join Date: Apr 2005
Location: Brentwood, CA, USA
Posts: 6,771
iTrader Ratings: 22
iTrader Positive Rating: 100%
hoppycalif is a valuable member of the community hoppycalif is a valuable member of the community hoppycalif is a valuable member of the community
Default Re: Tiny super efficient CO2 reactor

I have never seen a ceramic disc diffuser produce as fine a mass of bubbles as this little one does, when it is working without too much CO2 being bubbled into it. CO2 mist works best with those very fine bubbles. Even those tiny bubbles don't disappear before reaching the water surface, but they float up much slower and linger stuck to the water surface longer. I don't think any CO2 bubbles actually disappear when they float up. Perhaps someone can explain that?? At one time it was said that CO2 bubbles trade CO2 for other gases in the water, so the bubbles aren't CO2 when they reach the surface.
hoppycalif is offline   Reply With Quote
Old 06-17-2008, 03:22 AM   #89 (permalink)
Senior Member
 
ghengis's Avatar
 
Join Date: Jun 2008
Location: Cairns, Australia.
Posts: 345
iTrader Ratings: 0
ghengis is a regular member
Default Re: Tiny super efficient CO2 reactor

Quote:
Originally Posted by Turtl3boy21 View Post
I have another "what is better" questions xD

A ceramic disc diffuser or the one on this thread?

About ceramic diffusers, does it dissolve c02 or mist? I know that tiny bubbles come out of the disc but i am under the impression that the bubbles are so small it dissolves before it hits the surface.
From recent, personal, experience (although coming from a relative noob), I can say that for a DIY system, glass diffusors are not ideal. I recently purchased a few from evilBay, set one up and proceeded to wait...and wait...and, etc. A brand new mix and twelve hours later, I had enough pressure built up for a nice stream of bubbles. About eight hours after that, the bubbling stopped. It's my opinion that glass (ceramic disc) diffusors require serious pressure to push thru the ceramic plate. Pressure not (consistently) achievable with DIY.

Until I come up with a better plan (the one in this Thread looks pretty good, atm), I'm running with something super simple. Not sure if you've seen this done before:


Seems to be OK, for the nonce, but will figure out something soon...
ghengis is offline   Reply With Quote
Old 06-17-2008, 06:03 AM   #90 (permalink)
Senior Member
 
Tex Gal's Avatar
 
Join Date: Oct 2007
Location: Joshua, TX
Posts: 8,540
iTrader Ratings: 192
iTrader Positive Rating: 100%
Tex Gal is a regular member
Default Re: Tiny super efficient CO2 reactor

Nice idea! Certainly cheap enough. Looks like a pretty fine mist.

I have had trouble with the ceramic diffusers seeming to clog, although not visible. I have had to switch out to a dry clean on and put the old one in bleach solution, scrub it with a brush, and treat with prime to get it ready for next switch out.



Tex Gal is offline   Reply With Quote
Reply


Aquatic Plant Central > General Interest Forums > DIY Aquarium Projects > Tiny super efficient CO2 reactor

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 06:02 PM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.

Search Engine Friendly URLs by vBSEO 3.6.1