Which is a better powerhead attachement?

[PuffersKick]

I just added a new powerhead to the lower portion of my tank. Instead of just blowing straight in one spot I wanted to create a moving current. I found these two attachments and wanted to know which would be better.

http://reefcentral.com/gallery/data/500/83549BIOFLO.jpg


OR

http://reefcentral.com/gallery/data/500/83549oscillator.jpg


The first is the Hydor BIOFLO Aerobic filter and the second is an oscillator. And I also need to be sure it will work on a RIO 900.

Thanks.

[bheron]

I have no idea about either. Sorry. But what IS that stuff around the powerhead in the 1st pic? Is that some kind of filter media?

If so, I would take that off prior to installing it. JMO.

[skidmarks]

Where is that oscillator from? - I'd like to try it attatched to my return.

I have two of the Hydors, attatched to two Penguin 550 powerheads those penguins are weak, I think like 195 gph, but they are great with the hydors, it seems to create random flow when they "cross streams" with the return flow. or the maxijets.

[keckles]

The sponge on the Flo seems to just collect detritus/debris. It also slows down performance. The Flo comes with a set of four attachments, I'm sure one of them will fit on your Rio.

I am a big fan of the Hydor Flo, but I have no experience with the second option. If you do decide to use the Flo, I would remove the sponge.

[crazyfish]

I just got one of those hydor deflectors and I am very happy with it. It makes sense that corals and such prefer a random current than the straight blast from regular powerheads.

[wahwoo]

The first one is a keeper without the sponge. They call it an Aerobic filter so they intend it to grow beneficial bacteria like bio balls. Scrap the filter you dont need it.

I know a few coral farmers who use the first option.

[Rikko]

http://reefcentral.com/gallery/data/500/83549BIOFLO.jpg

<giggle> Interesting Aquaclear...
Not being insulting - I'm assuming you took that as a stock photo and didn't do it yourself (it seems almost airbrushed).

Here's perhaps another option for you:
http://www.geocities.com/nivenboug/Cutmaxijets.html

It would work best in conjunction would some sort of wavemaker timer, but there's a clever way to oscillate currents.