It does what is is supposed to. But must always dose in small amt and dose when pump n skimmer r on.
I dose with dosing pump, 5 times a day (3ml approximately each dose). I also face a little bit of the White strings/film, which is the bacteria bloom.
I had accidental dosage with pump n skimmer off and can see the fishes gasping for air in awhile. But they r Ok once the pump n skimmer r on.
Well, I hv not changed water for 4 mth (just top up with rodi). Basically medium live stocking with very few soft coral. Only 1 small frag of sps for testing for 1mth so far.