I'm currently running rowaphos in a typical tall reactor but found 2 issues with it :
1) After a while the rowaphos tends to stop churning/fluidizing. And water that goes in the reactor starts to 'channel'. That is, water flows through small paths of least resistance and do not have effective contact with all the media in the reactor
2) Not so much an issue but an inconvenience to have to disconnect the tubes to the reactor then lift the full reactor out of the sump. My sump is quite packed & need to carefully navigate the reactor through tubes & wires.
The sump clean up effort was also to make space for the Nyos Torq G2 to solve the above issues.
Below is the new Torq G2 1.0 body (right side). Compare that with the old Gen1 - 2.0 sized body (on the left).
The 1.0 sized body is smaller but good enough for me - only running rowaphos.
The 2.0 body has plenty of volume. Its actually a good size for running bio pellets.
Now has a fine mesh. Seems to do a good job keeping small media like rowaphos above the mesh.
Also comes with a larger mesh. Good for less restricted flow or for larger media.
The top sponge has a slit at the top. This is an exit path for water to prevent internal pressure from building up in case the sponge gets clogged.
One thing I found was that its now very convenient to rinse the rowaphos. Its really as simple as just pouring clean water from the top & let the dirty water flow through the bottom mesh. After a few liters, its all clean.
Effortless!
Both the top & bottom have a locking mechanism. This finally solves the big issue of the older generation where the lids can slip off.
I put this amount for my 850L tank. That's about 1/3 bottle of Rowaphos.
Woot! Fluidizing very nicely in the chamber. And easy to adjust the flow. Clockwise to reduce the flow. Anti clockwise to increase flow....just like running a tap.