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Old 08-27-2006, 11:03 AM   #1 (permalink)
ykh
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Default CO2 Regulator with Solenoid

I'm going to order another CO2 regulator. My question is for the regulator with solenoid, will it be useful without a pH controller. I just don't plan to spend $200 for a regulator and pH controller.

Any deals on CO2 regulator? Saw the AZOO's on sale at drfostersmith.com for $72.
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Old 08-27-2006, 11:27 AM   #2 (permalink)
 
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A regulator's solenoid without a controller is very useful. Instead of using a pH controller, you can stick the solenoid on a timer to turn on the CO2 flow when the lights come on.

As for deals, the Azoo at D&S is pretty good and as cheap as it goes for that regulator.

You should also check ebay from some deals from the ebay stores. I think you can get a JBJ for $80 shipped and a milwaukee for about $83 shipped.

-John N.
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Old 08-27-2006, 11:31 AM   #3 (permalink)
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I don't have a ph controller but really like having a solenoid on my system. You can hook it up to a timer so it turns on an hour before the lights, and turns off before the lights go out--very handy and saves CO2. I'm too forgetful to remember to turn it on and off everyday!

I've had some problems with the Azoo regulator package I got from Drs. Foster Smith. The regulator itself is sturdy and I haven't experienced any leakage. But for the first two weeks I had it, the pressure would drop over the course of the day and I'd come home to few or no bubbles at all. I had to crank the pressure up to 40psi to keep it constant, and even then it would drop. This still happens occasionally, though it seems to have mostly stabilized. I'm not the only person on the board who has experienced this problem.

The bubble counter (Aqua Medic) that comes with the package is a piece of crap. You can read more about my experience with the bubble counter and diffuser that come with the package in my goldfish tank journal (in my signature below).
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Old 08-27-2006, 05:11 PM   #4 (permalink)
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Thanks John and abnormalsanon for the prompt replies.


>A regulator's solenoid without a controller is very useful. Instead of using a >pH controller, you can stick the solenoid on a timer to turn on the CO2 flow >when the lights come on.
Won't this cause pH fluctuations? I read that a pH swing is not that good, that's why most people just leave the CO2 on for 24/7.
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Old 08-27-2006, 08:11 PM   #5 (permalink)
 
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Don't worry about the slight pH swings when turning off the CO2 flow at night. It's not going to harm things. The thing you should worry most about is over injecting CO2 in the beginning.

With that said, I have all my pressurized CO2 systems on timers. My fish and even shrimp are alive and well. I recommend putting it on a timer to save CO2, but ultimately if you leave it on it won't make any difference anyways.

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