How many DIY CO2 bottles for a tank.... - The Planted Tank Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 25 (permalink) Old 10-28-2011, 10:02 PM Thread Starter
Algae Grower
 
fuzz_16's Avatar
 
Join Date: Oct 2011
Location: Kansas city, KS
Posts: 107
How many DIY CO2 bottles for a tank....

Is there a certain gallonage amount to follow when deciphering how many bottles to have for one tank?

I am doing a 75g tank, so figured 3 2L bottles would suffice?
Or are there other factors in deciding how many to set up?
fuzz_16 is offline  
Sponsored Links
Advertisement
 
post #2 of 25 (permalink) Old 10-28-2011, 10:24 PM
Obsessed? Maybe
 
somewhatshocked's Avatar
 
Join Date: Aug 2011
Location: Louisville, KY
Posts: 12,555
Your best bet is to start with 3. If, after two days, you're not where you want to be? Add another bottle and wait a couple days. Add more if necessary.
somewhatshocked is offline  
post #3 of 25 (permalink) Old 10-29-2011, 12:32 AM
Planted Member
 
Kojack's Avatar
 
Join Date: Feb 2010
Location: Indianapolis, IN
Posts: 194
I use 4 bottles on my 55G, 2 bottles diffusing at each end of the tank. Limewood airstones work great for diffusing DIY c02, the ones I use are made by coralife
Kojack is offline  
post #4 of 25 (permalink) Old 10-30-2011, 01:19 AM Thread Starter
Algae Grower
 
fuzz_16's Avatar
 
Join Date: Oct 2011
Location: Kansas city, KS
Posts: 107
How do I know if I am at a good amount of CO2?

For the DIY is there a point of a bubble counter if you cannot control it?

Can you have the CO2 lines go into the canister filter? or so you just stick the tube into the tank?
fuzz_16 is offline  
post #5 of 25 (permalink) Old 10-30-2011, 04:03 AM
Obsessed? Maybe
 
somewhatshocked's Avatar
 
Join Date: Aug 2011
Location: Louisville, KY
Posts: 12,555
You'll know you're at a good CO2 level when your drop checker (if you don't have one, it's worth the $2-4 in the beginning until you get the hang of it) is at a solid yellow-green color. Or when your critters aren't gasping and your plants are growing swell.

I think it's a good idea to have a bubble counter - either homemade or purchased - just so you can have a sense of how to measure things.

You can definitely rig things up to flow into an in-line diffuser for a canister filter. Since it's DIY, I've never been able to see a lot of benefit on that front, though. I just use the standard ceramic diffusers from eBay and clean them once a week with bleach.
somewhatshocked is offline  
post #6 of 25 (permalink) Old 10-30-2011, 04:36 AM Thread Starter
Algae Grower
 
fuzz_16's Avatar
 
Join Date: Oct 2011
Location: Kansas city, KS
Posts: 107
k...i spent like...forever watching youtube videos for diy CO2 diffusion and the only one that i really get is wit powerheads...im not stupid i just have visualization issues and do better being shown in person.

and if someone could answer these questions...they pile up and i hate asking cause i feel like i get ignored sometimes with all the questions. i just wanna do this right. and i do google this...but dont always find exact info i need

1. the ceramic diffusers, am i right in seeing their just glass bong/bulb looking things?
2. Does every 2L bottle need to have its own bubble counter?
3. Do you put check valves before or after the bubble counter? or before and after? if i have 3 set up?
4. bubble counters just say how much you have still going in tank, if any, right?
5. if fish are gasping it means too much co2 being put into tank? how would i adjust amount?
6. how do i turn it off at night? as i gather you dont run co2 when lights go out?

7. does the co2 bottle always have to be vertical to get best effect?
8. Would using something larger, like a water jug, work for diy co2? Make 3 batches at once in it, for example? Or would it put out too much or not work the same?
fuzz_16 is offline  
post #7 of 25 (permalink) Old 10-30-2011, 10:56 AM
Algae Grower
 
Join Date: Jun 2011
Location: Chattanooga, Tennessee
Posts: 57
jaafaman is offline  
post #8 of 25 (permalink) Old 10-30-2011, 12:51 PM
Planted Tank Enthusiast
 
Join Date: Jun 2011
Location: Indiana
Posts: 633
I'm using 3 two liter bottles on my 60 gallon. If you don't want that white stuff to appear on your diffuser then just add a small plastic bottle in-between your 2 liters and your diffuser. Here's a diagram of the DIY CO2 that I followed
Hcancino is offline  
post #9 of 25 (permalink) Old 10-30-2011, 04:45 PM Thread Starter
Algae Grower
 
fuzz_16's Avatar
 
Join Date: Oct 2011
Location: Kansas city, KS
Posts: 107
thats actually the set up i was looking at doing, too....but still a bunch of questions above that didnt get answered
fuzz_16 is offline  
post #10 of 25 (permalink) Old 10-30-2011, 06:58 PM
Obsessed? Maybe
 
somewhatshocked's Avatar
 
Join Date: Aug 2011
Location: Louisville, KY
Posts: 12,555
1. Ceramic diffusers are the ones you see throughout the forum and on eBay. They're typically glass pipes with a bowl and a ceramic disc at the top through which CO2 diffuses via tiny bubbles

2. No

3. Doesn't matter. Whatever you think looks best. I use them after.

4. Bubble counters allow you to see how many bubbles per second are flowing from your reactor. There's nothing really precise about it but they do help you estimate how much CO2 you're producing once you're familiar and comfortable with the setup you've got

5. Make your mixture weaker if you want to reduce CO2 production. Or you can amp up surface agitation, run an airstone or remove the tube for a while.

6. You can't turn it off at night. You can remove it, however. Most just run an airstone after lights out.

7. Yes, vertical. Otherwise, your mixture will leak out.

8. You can use a larger container. Most use standard 2L bottles because they're rated for up to 90psi (actually higher, but that's how they ship with soda) and can easily handle CO2 pressures produced by yeast.
somewhatshocked is offline  
post #11 of 25 (permalink) Old 10-30-2011, 07:16 PM Thread Starter
Algae Grower
 
fuzz_16's Avatar
 
Join Date: Oct 2011
Location: Kansas city, KS
Posts: 107
thank you so much, a lot of help
fuzz_16 is offline  
post #12 of 25 (permalink) Old 10-30-2011, 09:18 PM Thread Starter
Algae Grower
 
fuzz_16's Avatar
 
Join Date: Oct 2011
Location: Kansas city, KS
Posts: 107
http://www.amazon.com/Spio-III-CO2-D...=17ZVIZIA9KOUG

could i use this to diffuse it into tank? you just attach theair line tubing from co2 to this?
fuzz_16 is offline  
post #13 of 25 (permalink) Old 10-30-2011, 10:15 PM
Obsessed? Maybe
 
somewhatshocked's Avatar
 
Join Date: Aug 2011
Location: Louisville, KY
Posts: 12,555
Yup.

Though, you can definitely find diffusers for cheaper. Usually about a buck or two on the dreaded eBay and occasionally on AquaBid.
somewhatshocked is offline  
post #14 of 25 (permalink) Old 10-30-2011, 10:59 PM Thread Starter
Algae Grower
 
fuzz_16's Avatar
 
Join Date: Oct 2011
Location: Kansas city, KS
Posts: 107
ive never tried ebay or aquabid and i dont have paypal..i stalk aquabid though it could get dangerous for me...but ya prob can find them cheaper, just to get an idea of what i can use
fuzz_16 is offline  
post #15 of 25 (permalink) Old 10-30-2011, 11:50 PM
Plant Clown
 
kevmo911's Avatar
 
Join Date: Sep 2010
Location: Greensboro, NC
Posts: 4,708
Broken piece of bamboo chopstick shoved into the end of the tubing works in a pinch.

It's a mildly unpopular belief, but I believe it takes some serious effort to harm your fish with DIY CO2. And though I know that many will disagree with me, I'd say you'll have to use a heck of a lot more than three 2L bottles to have enough CO2 to be worried about a CO2 overdose. Start with 3 if you'd like, but a 75g tank? Some folks have used a single 2L bottle on a 10g tank. But I'll defer to the cautious posters - start low and work upward.

Oh, and there's no reason to remove the CO2 setup during lights off. And I honestly don't think it's worth putting in an airstone (for that purpose, anyway) at night, but it can't hurt.
kevmo911 is online now  
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



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