That's not nearly as efficient as being in a reactor with the water being pushed up through it.

I have never seen that particular media but it looks like it just has some ferric oxide mixed in. If you are trying to pull the phosphates out, nothing beats 100% ferric oxide in a fluidized bed(reactor).

Be careful if you have any SPS coral because stripping phosphates too quickly can cause bad things to happen to those corals.

I have 2 of these reactors running 24/7. One always has GFO media and the other has straight carbon.

get some emerald crabs, and a full cleanup crew