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Old 12-01-2009, 04:15 PM   #1
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Advice on Pressurized Co2

Im going to finally take the plunge into pressurized co2 for my 75 g planted tank. As I understand it, the parts needed are co2 regulator, needle valve, check valve, tubing, tank, and the diffuser.

I have the tubing and a regulator and I'm sure it won't be hard to find a tank. What type of needle valve and check valve do y'all reccomend? I also want a drop checker, any recommendations on this would be great too.
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Old 12-01-2009, 06:22 PM   #2
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You are correct about the parts needed.

Regulators usually have needle valves attached, but if not, I'd use just a regular brass one. Clippard is the brand that most people use. For the check valve definitely go with brass as opposed to plastic. It will last longer. I got mine from Rex Grigg. If your regulator doesn't come with a needle valve, you'll want an inline one. That and the check valve are cheaper from Rex, but it says he doesn't keep the needle valves in stock, so it might take a little longer. Aquabotanic.com has them too, but for a little more.

I like the glass drop checkers just because they look better. Green Leaf Aquariums has 1 for $25.99 which is probably the cheapest I've seen for sale in the US lately. They have the brass check valve (Clippard) too, but not a needle valve (go figure). If you are ok with just a useful drop checker, Red Sea makes one that isn't lovely, but it works!

Hope that helps!
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Old 12-01-2009, 07:02 PM   #3
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My regulator just has the high pressure side and the low pressure side..

Thanks for the input!
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Old 12-01-2009, 07:30 PM   #4
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i think i have a extra needle valve. ill take a look. you have pic of the reg?
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Old 12-01-2009, 07:39 PM   #5
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Here's a picture of it. Sorry it's so tiny..lol
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Old 12-01-2009, 07:42 PM   #6
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To add, its a victor medalist model 0780-2544
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Old 12-01-2009, 07:42 PM   #7
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by the looks of it the thread looks bigger then the one i have. i think its 1/4th inch thread that looks more like 1/2 inch.
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Old 12-01-2009, 07:48 PM   #8
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Yeah, Im going ot have to get a reducer or something for it. Hey, it was brand new and free so I can't complain..lol.

OT, do you have a link to your plants for sale?
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Old 12-01-2009, 07:55 PM   #9
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yea ill pm it to you... searched real quick didnt find your email address lol i am sure i have it somewhere. dont want them to get mad for posting it.

ill look for the needle valve... i asked a friend who uses those regulators how he has his set up though maybe his is a different model.
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Old 12-01-2009, 07:56 PM   #10
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Thanks!
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Old 12-01-2009, 09:32 PM   #11
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hey blueiz. for a drop checker i would highly recommend the cal aqua oracle style drop checker. it can be hard to see the color of the indicator solution with the reflections from plants and lights in your tank. the oracle has a white plug in it that makes it easier to see. the red sea drop checker does the same thing but, imo is hideous.

i would also recommend a solenoid for your regulator so that you can hook it up to a timer
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Old 12-02-2009, 12:16 AM   #12
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They are 1/4".
Use a 1/4" to 1/8" reducer.

ok i got the wrong size but now you know what parts you need to plug in the needle valve.
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Old 12-02-2009, 09:54 AM   #13
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Would this needle valve work? Anderson Barrows at Lowe's: PB9106C 3/8" Comp x Comp Needle
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