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Old 06-27-2006, 04:09 PM   #1 (permalink)
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Default 2x Hagen Ladder? Overkill

is it okay to put 2 haggen ladder on my 29 gal. to have more CO2 instead of 2x 2 liter for just 1x ladder, im planning to do 2x 2 liter, each 1 liter has a ladder or this is a bad idea?

Any input will be appreciate, i have 2.9wpg
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Old 06-27-2006, 05:11 PM   #2 (permalink)
 
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I don't think it is a bad idea in fact you could time your DIY mix so that you don't have a lag.

Right now for my 15G I have 1 bottle hooked up to the ladder and another shooting straight up the intake of my AC mini.

Frank
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Old 06-27-2006, 05:17 PM   #3 (permalink)
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yeah, i know it will be easy if i just put a ladder on each bottle, cause i think using 2x 2liter bottle in just 1 diffuser is complicated, just for me
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Old 06-27-2006, 06:42 PM   #4 (permalink)
 
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Originally Posted by xcooperx
yeah, i know it will be easy if i just put a ladder on each bottle, cause i think using 2x 2liter bottle in just 1 diffuser is complicated, just for me
It's really not all that complicated however I understand your reservations. 2 ladders for your 29 gallon tank would be fine. Most people avoid using two ladders just because the ladders take up space and are an eye-soar if not hidden properly.

Tinker around with 2x2 Liter bottles connect to 1 ladder by a T-valve when you get the chance. You'll find that it's as simple as making the recipe itself.

-John N.
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Old 06-27-2006, 07:19 PM   #5 (permalink)
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is the recipe for 2x2 liter in just one diffuser is same or i should make it half for eawch bottle, anyway do i really need 2 bottle for my 29 gallon, i have 2.9 watts?
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Old 06-28-2006, 02:00 PM   #6 (permalink)
 
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It doesn't matter if a bunch of bubbles are running up one ladder at once. Better to just keep one ladder and use a T to combine the CO2 source bottles, or even better, build a powered/active reactor.

IME I need a little less than 2L of the regular CO2 mix per 10gals to keep BBA and such away while running high light. With high light you should use two bottles and stagger their start times (start them a week apart, change alternating bottles weekly) to minimize the effect of fluctuating output inherent in DIY. Care more about the nominal/minimal output than the average dissolved CO2 and you'll do great.

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Old 06-28-2006, 03:02 PM   #7 (permalink)
 
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is the recipe for 2x2 liter in just one diffuser is same or i should make it half for eawch bottle, anyway do i really need 2 bottle for my 29 gallon, i have 2.9 watts?
More CO2 never really hurts anything, unless you're getting such high levels that cause harm to fish. i would run (2) 2 liter bottles to one hagen ladder.

Each 2-Liter bottle recipe should have the full recipe. Only difference is that these bottles will be connect to each other and the ladder by a T. Having two bottles, gives you a change to alternate and swap one out every two weeks, and then the other out the next two weeks. This keeps the CO2 production nearly constant without having to wait a day for full production when redoing 1 bottle, or both bottles at the same time.

So 2 bottles, full recipe, and alternate every 2-3 weeks when replacing to keep CO2 at good levels.

-John N.
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Old 06-28-2006, 04:01 PM   #8 (permalink)
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i dont get it, if i have 2 bottles, that 2 bottles will run and produce co2, then after 2-3 weeks i need to change the 2 bottles right, how do i alternate them if the 2 bottles is running?
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Old 06-28-2006, 08:15 PM   #9 (permalink)
 
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You would change one bottle at a time, alternating bottles each time. In my experience the standard DIY CO2 mix can output for a month, but production is usually highest in the first couple of weeks.

There are longer lasting mixes out there, and a search of the forum for the Nyberg method is probably as good a place as any to start. Personally, its easier to change fast simple mixes on the regular, and sometimes I increase the yeast simply because each of my bottles only run two weeks. (I use 1/4-1/2tsp per 2cups sugar now, eyeballed.)

Anyway, lots of different methods but the principles are the same. The common goal is to make the CO2 output steadier while keeping maintenence relatively low.
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Old 06-28-2006, 08:52 PM   #10 (permalink)
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so if i change 1 bottle, the co2 from the other bottle will just go out to the tube and not to the tank
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