Nitrifying Bacteria

[Galizio]

Also about those brightwell bricks. There are 3 way to run them,
In water low flow
In water with flow going thru
And above water with little flow going thru(for this one I really suggest u to check Ryanerikson tank build to have an idea how to use the brick for nitrifying bacteria)
Which one of the 3 you use?



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[gmann]

I put them in low flow right in front of a baffle so that water has to pass through them to get to the next compartment.