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nutrafin CO2 system
I was thinking about getting one of these diffusers but had a couple
of questions. Do they sit inside the tank or outside the tank ? Okay, maybe that's a dumb questions, since I assume they have to be inside, however, are they very large ? Do they look ugly ? I am trying to make my tank look natural and having a giant plastic thingy in the tank would seem to defeat the purpose. On Mon, 31 Mar 2003 01:49:35 -0600, Eric Schreiber wrote: "Dave" wrote: I recently set up a 33 gallon planted tank and purchased one of these Nutrafin thingys. I have a few questions about the bubble dispenser that attaches to the side of the tank with suction cups. Are the bubbles supposed to flow directly out of the airtubing into the dispenser? Yes, they are. Sounds like your tube may not be set in place quite right. The end of the tube should have a little plastic nozzle thingy, cut at a slant. The direction of that slant will steer the bubbles into the diffuser. From there, the bubbles should zig-zag through the entire diffuser from bottom to top, before finally floating out the top. attached a small pce of plastic to the bottom to guide the bubbles directly into the dispenser. When I did that....all the bubbles went directly into it....and then flowed up each level of the dispenser...and then flowed out the top of it to the surface and popped. No bubbles actually stayed in the dispenser...they just flowed out level by level up to the top. Bear in mind that when you first start up a new CO2 mix, you've got mostly regular air in the CO2 bottle. That regular air has to be forced out by CO2 production first, and it can take up to a day to do that. Since your tank water is reasonably well saturated with the components of regular air, these starting bubbles will remain pretty much the same size as they travel through the diffuser. However, once the regular air has been cleared from the CO2 bottle, you'll start getting more-or-less pure CO2 gas. When these bubbles travel through the diffuser, you'll see that they actually get much smaller and slower by the time they reach the top. This shrinking of the bubbles as they move through the diffuser is your verification that CO2 is properly dissolving into the water, and that the CO2 system is working correctly. |
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