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Old 10-12-2006, 07:27 PM   #141 (permalink)
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Quote:
Originally Posted by Robert Hudson View Post
What the heck are you smoking there Dennis? Cricket chirps and shadows?
You mentioned hill-billys and since I are one I figured you cipher out my reference to using the sun as a clock. Crickets also chirp at specific interval speeds based on the temperature (old wives tale) so if you know the temp- and you can stick your head out the door for this, you'll know how many cricket chirps are in a minute.

And just to be slightly on topic, the nano diffuser I got from you a long while ago produces super tiny, mist like bubbles. I really think most ceramic diffusers are hit or miss when it comes to "quality control".
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Old 11-25-2006, 09:26 PM   #142 (permalink)
 
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Out of shear curiousity what is the difference, or even function, of the spirals in the glass of the glass diffusers?

And if there is an option of connecting the CO2 directly into the intake of a canister filter that would be the best option over a glass diffuser right?
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Old 11-26-2006, 06:50 AM   #143 (permalink)
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kris,
the spirals are there for aesthetics more than anything else.
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Old 11-28-2006, 06:02 PM   #144 (permalink)
 
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I always thoguht the venturi reactors were the best? They swirl the CO2 around untill you get 99-100% diffusion (no bubbles mayeb a very fine bubble every so often) escape the chamber.

Should I be looking into a glass diffuser instead? The only problem I have with the Venturi is I think I killed some fish last week when the airline that I run at night fell off the splitter valve. I lost some fish, I'm thinking from too much CO2. I have DIY Co2 with the Venturi reactor but I have over 30 ppm estimated, perhaps it built up to angerous levels without the airstone? Poor fishes
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Old 12-03-2006, 02:03 AM   #145 (permalink)
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i personally dont like the reactors cause they clutter up the tank. the diffuser is smaller, just as effecient and pleasing to the eyes.

i have not notice a lack of co2 when switching to the diffuser from a reactor.
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Old 12-03-2006, 08:18 AM   #146 (permalink)
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As far as efficiency goes, I have better luck bubbling CO2 into my Eheim. The glassware looks good, however, so that's why I bought the Beetle from AGD.
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Old 12-03-2006, 09:01 AM   #147 (permalink)
 
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Quote:
And just to be slightly on topic, the nano diffuser I got from you a long while ago produces super tiny, mist like bubbles. I really think most ceramic diffusers are hit or miss when it comes to "quality control".
Well there you go. I can not believe this tiresome thread is still being kept alive. I don't think quality control has much to do with it. They all come off the same production line in a sweat shop in China. There is no quality control. My biggest frustration with them is once they get dirty and the pores in the disk are clogged, it will never work again. You can clean it, soak it, scrub it, bleach it, whatever, its history. And if that doesn't happen, you can break them, very easily. I have broken dozens.
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Old 12-03-2006, 09:57 AM   #148 (permalink)
 
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Default Difference between all Glass Diffusers

As mentioned somewhere before the difference between all the diffusers out there is the ceramic disk size which is generally better because it allows a greater surface from which the bubbles can emerge. You can push a higher bubble count on the one's with the larger disk and still get misty bubbles. For the nano diffusers, there is a threshold before the bubbles run into each other and create larger, harder to dissolve bubbles.

My Nano Diffuser produces fine misty bubbles. Most of these micro bubbles either get caught in a current or they dissolve before they reach the surface.


Nano Glass Diffuser - Misty micro bubbles


Pot Glass Diffuser - Misty bubbles, with greater surface area for more bubbles.

The quality will vary from diffuser to diffuser, even the ADA ones. Always have more than one for this reason, and just in case you break them.

-John N.
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Old 12-04-2006, 01:54 AM   #149 (permalink)
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my nano mist like john's and i have witnessed the same when bubble count is turned up the mist merges back together.
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Old 02-08-2007, 06:03 AM   #150 (permalink)
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Bringing back an old thread, but how are you guys getting the CO2 bubbles spread around the tank. Do you have a seperate water pump near the Diffuser somewhere blowing the bubbles?
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