GFO: Only top tumbling

[Miami Reef]

I recently switched to Rowaphos, but only the top of the GFO is tumbling in the reactor. The bottom portion seems like it not moving at all.

There’s about 4-8 Tbsp in there.

Any ideas?

 

[Miami Reef]

Title should say top*

edit. Thanks mods!

 

[Jared Bryant]

I never tumble GFO or GAC. I turn it until they almost move and stop.

 

[Coolcasino]

I never tumble GFO or GAC. I turn it until they almost move and stop.

GAC should not tumble at all. That little tumble can cause it to break up. GFO need a little movement so it doesn't clump up.

 

[Coolcasino]

You might need a bigger pump and then get a small valve to control it. I use about the same of Rowa in a BRS reactor. The stock pump ( sicce 1.5 I believe) runs fully open and moves the Rowa just enough. Any more Rowa and I would need a bigger pump myself.

 

[EeyoreIsMySpiritAnimal]

I recently switched to Rowaphos, but only the top of the GFO is tumbling in the reactor. The bottom portion seems like it not moving at all.

There’s about 4-8 Tbsp in there.

Any ideas?

Mine just kinds "vibrates" at the top. As long as it doesn't get clumpy, you're fine.

 

[Randy Holmes-Farley Verified Community Expert]

I recently switched to Rowaphos, but only the top of the GFO is tumbling in the reactor. The bottom portion seems like it not moving at all.

There’s about 4-8 Tbsp in there.

Any ideas?

That's the way mine was (it may be fine, don't know), but I later mixed it with GAC to allow more spaces for water to flow through.