co2, ice etc. - The Planted Tank Forum
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 01-17-2013, 07:48 PM Thread Starter
PTrader: (9/100%)
Join Date: Dec 2011
Location: New England
Posts: 1,116
co2, ice etc.

After telling the girlfriend my plan for the summer she goes why not just use ice?
Melting ice will release co2. So I got the thinking why not use ice over yeast.

Anyone try using ice for co2?
In.a.Box is offline  
Sponsored Links
post #2 of 5 (permalink) Old 01-17-2013, 08:17 PM
Algae Grower
PTrader: (5/100%)
Join Date: Nov 2011
Location: Sarasota, FL
Posts: 52
I would not do that, it's too difficult and unstable to work with. Dry ice is extremely cold, any contact with bare skin, fish, plants ect would cause severe tissue damage or kill them. The other issue is you need CO2 dissolved in the water, and you need to control the dose or amount. Dry ice will loose about 20 percent a day sublimation, keeping it in a confined space ie closed tank creates a chance for asphyxiation.

Work In Progress
jschwabe5 is offline  
post #3 of 5 (permalink) Old 01-17-2013, 08:22 PM
Wannabe Guru
AnotherHobby's Avatar
PTrader: (10/100%)
Join Date: Mar 2012
Location: Apple Valley, MN
Posts: 1,602
Sounds 100x more complicated than dumping water, yeast, and sugar into a 2L bottle and putting the cap on.
AnotherHobby is online now  
post #4 of 5 (permalink) Old 01-17-2013, 10:02 PM
Wannabe Guru
ngrubich's Avatar
PTrader: (25/100%)
Join Date: Nov 2011
Location: Charlotte, NC
Posts: 1,097
I agree with the other two. I suppose it could work if you tapped a line into a dewar that holds the dry ice, but that would end up being way more expensive than doing what AnotherHobby suggested, plus it is way more dangerous like jschwabe5 said.

If she is talking about normal ice, then that doesn't even make sense. Normal ice (solid water) carries trace amounts of impurities, but you'd need a room full of ice (containing CO2 impurities) to even get the output of a normal DIY system; that wouldn't last very long anyways.
ngrubich is offline  
post #5 of 5 (permalink) Old 01-17-2013, 10:02 PM
Planted Tank Guru
DarkCobra's Avatar
PTrader: (5/100%)
Join Date: Jun 2004
Location: Baton Rouge, LA
Posts: 3,350
Above is true when it comes to dry ice, which is solid, frozen CO2. You cannot control the rate at which it melts (actually, sublimates - since it skips straight from solid to gas without ever becoming liquid). Any attempt to confine and save it for later use becomes a pressurized system, with risk of explosion if pressure becomes too great for the container.

But you didn't actually say dry ice. You said ice. Plain old water ice doesn't release any CO2 as it melts. Maybe just a trace, if the tapwater it was frozen from had some CO2 in it, but you'd need a LOT of water.
DarkCobra is offline  


Quick Reply

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


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

Email Address:


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

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