Yeaulman Posted July 20, 2005 Report Share Posted July 20, 2005 Ok here goes one more question. I am looking at getting a glass and ceramic diffuser for my 20g soon to be planted tank. Will this disolve the co2 completely or should I just make a reactor with a powerhead? The diffuser looks like this: Anyone ever use these before? Quote Link to comment Share on other sites More sharing options...
Garhan Posted July 21, 2005 Report Share Posted July 21, 2005 (edited) The uptake of the C02 into the water will probably be fairly slow. It looks like you just get a bubble that is held in place until it is absorbed. Building a reactor that is powerdriven is quiet easy and will have 90-100% saturation to the tank water reasonably quick. Although they are difficult to hide in a smaller tank, and therefore some people opt to use the diffusers that are laddered, airstone or like the style you posted. I use the C02 to adjust my ph level in the tank. Our city water comes at a 7.2-8.0 ph, so therefore I prefer the powerdrive system because I get more C02 into the water quicker. I have used several other types of diffusers from airstones to ladder systems. All the feed to contact systems work but not very effiecently. The powerhead drive system I have seen in several other aquarists systems and all are extremely effective. I will post a photo for you as soon as I go take a picture. Done Garhan Edited July 21, 2005 by Garhan Quote Link to comment Share on other sites More sharing options...
Milan Posted July 21, 2005 Report Share Posted July 21, 2005 Yeaulman, I fully agree with Garhan about the shown diffuser, vs. power units. You also mentioned earlier that you already have an in-line reactor. In my opinion, it should be more efficient than the above diffuser. Have you checked if there are any bubbles of undissolved CO2 coming out of it, and if the production of the CO2 is adequate. I think I read somewhere that it should be @ about 1 bbl/sec (if you have a bubble counter)? Quote Link to comment Share on other sites More sharing options...
Garhan Posted July 21, 2005 Report Share Posted July 21, 2005 If you have built an in line system then that is the better of the two diffuser. Use the Pinned C02 Calculator to achieve you desiredd ppm for the C02 input. Use the C02 volume to adjust your ph. Try not to mess with the KH. Garhan Quote Link to comment Share on other sites More sharing options...
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