Duckbill or not?

[ForestDave]

Hi.
I have a Fluval FX6 fitted to a diy full width 25mm diameter spraybar. I plumbed in an intake either side of my Roma 200 tank and use a diy CO2 reactor. This is all great but I have big lumps of rock in the middle section of the tank which stop any flow to the back and the plants don't seem to do well there. Either way, I am thinking of converting it to a circular flow with a pipe jetting the water along the back and maybe a powerhead helping it out along the way on the opposite corner. Can I simply pump it out of a 25mm pipe or do the duckbills offer an advantage in spreading the CO2 rich water around?
Thanks!

 

[Zeus.]

I have tried the 25mm pipe output from an FX6 and it doesn't create as much flow as the duckbills, the duckbills are not great for planted tanks, but its as good as it gets for FX6 output. I never seen a off the shelf solution for an FX6. Duckbill or Custom DIY .
After fitting my twin gyres a had the duckbills output on without the directional duckbills on, even less flow - which is what I was after at the time

 

[ForestDave]

I have tried the 25mm pipe output from an FX6 and it doesn't create as much flow as the duckbills, the duckbills are not great for planted tanks, but its as good as it gets for FX6 output. I never seen a off the shelf solution for an FX6. Duckbill or Custom DIY .
After fitting my twin gyres a had the duckbills output on without the directional duckbills on, even less flow - which is what I was after at the time

Thanks. Sounds like I might need a few small powerheads then to get a decent circular flow. Might be easier than trying to find a good duckbill for the FX6

 

[Gold Fish]

Hi, can you take a front general picture of the tank, for us to see the layout (rocks)?
Also some detail pictures of your in, out piping?
This way it will be much easier for us to help you.
Thanks