H.O.T. Magnum as diffuser? - The Planted Tank Forum
 
LinkBack Thread Tools Display Modes
post #1 of 12 (permalink) Old 09-18-2004, 06:48 PM Thread Starter
Planted Tank Obsessed
 
dogg76's Avatar
 
Join Date: Jan 2004
Location: North Carolina
Posts: 390
H.O.T. Magnum as diffuser?

Maybe I should have posted this in diy...not sure.
Has anyone used the H.O.T. Magnum as a co2 diffuser? If you have, how did it work? I was thinking of trying this so I could get my diy diffuser out of the tank. If I did start using it, would the co2 levels drop a lot when I took the filter out for cleaning?

75 gal, Schultz aquatic soil substrate. Filstar XP2 and a H.O.T. Magnum canister filter, 20# Pressurized Co2, Coralife 4x65 watt pc lighting.

Filstar Pimp#83
dogg76 is offline  
Sponsored Links
Advertisement
 
post #2 of 12 (permalink) Old 09-18-2004, 09:05 PM
Algae Grower
 
MantisX's Avatar
 
Join Date: Aug 2004
Location: Durham, North Carolina
Posts: 147
Well ive never intentionally used it as a diffuser. However, one day I was diatoming my water and I left the c02 on by accident. Naturally the bubbles were sucked into the intake. It churned them up pretty clean. The only reason I dont use it as a diffuser is because the tank in question is only 10 gallons. Its like a tornado in there If I were to use the hot as a diffuser, I would use the carbon cartridge, minus the carbon in it. You might want to monitor the water flow too, ive heard these slow down alot when theyre really clogged.

Hope this helps
MantisX is offline  
post #3 of 12 (permalink) Old 09-18-2004, 09:26 PM
Planted Tank Guru
 
Rex Grigg's Avatar
 
Join Date: Dec 2002
Location: Portland Orygun
Posts: 9,600
If you have an cannister filter why not build a DIY reactor?
Rex Grigg is offline  
post #4 of 12 (permalink) Old 09-18-2004, 10:51 PM Thread Starter
Planted Tank Obsessed
 
dogg76's Avatar
 
Join Date: Jan 2004
Location: North Carolina
Posts: 390
I have already built the diy diffuser using the gravel vacuum. I was just wondering if letting it bubble into the canister would be as efficient as the diy. If it is, then I could get the diy out of the tank.

75 gal, Schultz aquatic soil substrate. Filstar XP2 and a H.O.T. Magnum canister filter, 20# Pressurized Co2, Coralife 4x65 watt pc lighting.

Filstar Pimp#83
dogg76 is offline  
post #5 of 12 (permalink) Old 09-18-2004, 11:04 PM
Planted Tank Enthusiast
 
Join Date: Nov 2003
Location: central IL
Posts: 808
he's sayign if you have a canister (says you do in profile, why don't you make a external DIY reactor
fishyboy is offline  
post #6 of 12 (permalink) Old 09-19-2004, 04:52 AM
Are these real?
 
Wasserpest's Avatar
 
Join Date: Jun 2003
Location: Monterey, CA
Posts: 15,463
If the filter can handle it, it's definitely a very efficient (simple, safe, cheap...) way of diffusing CO2. You should really try it and monitor the filter. If it runs quietly and does not fill up with air (CO2, O2, whatever) it should work well.

I know there are a few of us that use their XP canisters as diffusors, but mine fills up with gas and starts to burp. Next best method is - like Rex suggested - an external reactor connected to your canister filter.
Wasserpest is offline  
post #7 of 12 (permalink) Old 09-19-2004, 04:59 AM
Algae Grower
 
MantisX's Avatar
 
Join Date: Aug 2004
Location: Durham, North Carolina
Posts: 147
I wonder would c02 have to be constantly pumped to it? I was thinking about hanging mine on the back of my 10 gallon and turning it on for an hour or 2 a day and shutting off. I wonder would it diffuse enough c02 into the water for that day? I paid 40 for it and it does an awesome diatom job, but I figure I might as well use it for something else since I paid for it.
MantisX is offline  
post #8 of 12 (permalink) Old 09-19-2004, 05:08 AM
Are these real?
 
Wasserpest's Avatar
 
Join Date: Jun 2003
Location: Monterey, CA
Posts: 15,463
That's a good question! All of the CO2 systems that I am familiar with provide some sort of constant flow, so my first thought was that this would probably not work, and it would stress occupants of the tank due to the fluctuating pH values. I don't know if anyone has actually measured how long it takes for CO2 to deplete, so letting it run for an hour or two say in the morning might be better than not running it at all.

In any case, a HOT Magnum can not be directly connected to a 10 gal tank, it is way too strong for it. Unless you use oversized sponges to reduce the whirlpool effect.
Wasserpest is offline  
post #9 of 12 (permalink) Old 09-19-2004, 05:14 AM
Hop
Planted Tank Enthusiast
 
Hop's Avatar
 
Join Date: Mar 2004
Location: Western Colorado
Posts: 507
If this is the Hot Magnum 250 HOB, it doesn't work very well as a diffuser on tanks larger than about 50 gallons. To hold 30 ppm on my old 55 the filter would air lock about every two days. Now if this is a Magnum 350, cannister, I hear they work very well, but have never used one. I guess that if I had a 350 I would still use an inline reactor, be it be store bought or home made.

Currently tankless for the first time in 24 years... Getting the itch again
Hop is offline  
post #10 of 12 (permalink) Old 09-19-2004, 01:36 PM
Algae Grower
 
ThatNewGuy's Avatar
 
Join Date: Sep 2004
Location: St Louis, MO
Posts: 145
I use my HOT Magnum as a diffuser on my 29 Gal and have not had any problems. Mine has an air ejection tube inside that prevents it from getting air locked so no problem there. In fact I have had to turn the airpump back on to stir the water and reduce CO2 once in awhile.
ThatNewGuy is offline  
post #11 of 12 (permalink) Old 04-14-2011, 03:15 AM
Algae Grower
 
Join Date: Apr 2011
Location: Orlando
Posts: 24
Did you do this on a hot magnum 250? If so, how did you do it?
jmzjmz is offline  
post #12 of 12 (permalink) Old 04-14-2011, 03:21 AM
Planted Tank VIP
 
chad320's Avatar
 
Join Date: Mar 2010
Location: Spring Valley, IL
Posts: 7,701
Just run your Co2 line into th inlet. I have 4 29gs set up like this w/o problems.
chad320 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the The Planted Tank Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Fluval 404 MSF and Marineland Magnum 350 Review GDominy Equipment 6 05-28-2009 01:04 AM
Extremely unscientific diffuser attempts; MacTech DIY 15 10-22-2004 07:48 PM
H.O.T Magnum pedietz Equipment 20 05-01-2004 06:25 AM
Just bought a H.O.T. Magnum filter today pepperonihead Equipment 7 01-29-2004 11:16 PM
DIY CO2 Diffuser Leak peterinwa DIY 2 01-16-2003 05:08 PM

Posting Rules  
You may post new threads
You may 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

 
For the best viewing experience please update your browser to Google Chrome