Celestial glade
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31st October 2008
I like the Boyu inline diffusors that I bought but they don't work very well with my current setup. Problem being that being inline the filter outlet needs to push the flow into the tank whereas I have always had my filter outlet pointing toward the surface creating turbulence.
This means that a lot of CO2 is lost at the surface and that the injection rate has to be increased. This of course defeats the object. I may use these in the future if I use a suitable outlet.
Started the week with powerhead and glass outlet next to each other (right rear) with the inline diffusor. Wasn't working too well and I also started pondering the smaller diameter of the glassware restricting the flow of the filter. Glass inlet was front right. I then moved to the original inlet and spraybar which seemed to improve the flow but more CO2 was lost using the spraybar.
The powerhead was also pushing the spraybar flow further upward. (spraybar right rear to centre rear, inlet rear left)
I then took out the inline diffuser and tried positioning the Rhinox 2000 diffuser under the spraybar which didn't work very well.
Tried it without the powerhead and still didn't work well.
The water was getting cloudy at this stage so I moved the inlet from the rear left where it was enclosed by the Philippine Fern to the right rear where it was in 'clear' water. Cloudiness disappeared within 24 hours.
Then I tried the diffuser under the inlet strainer (again without the powerhead) but again came to the conclusion as with the inline diffusor that the spraybar just doesn't work with the CO2 coming through it diffusion wise.
Finally went back to using the powerhead a little further down from the surface with the diffusor under it and I was back down to 2bps.
I now had the filter inlet in the right rear corner with the spraybar going from the right rear to centre rear. Then the powerhead on the right side pointing left with the diffusor below it.
Problem I now had was some staghorn and BBA on some of the leaves which I had been 'immune' from for quite a while. Even after all these changes I was still having flow issues due to the high plantmass in this aquascape and therefore I continued to make changes to the equipment's positioning.
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