It might surprise you to find out that zooxanthellae, the symbiotic organism that accompanies and sustains corals, is also a type of dinoflagellate.
As you may know, zooxanthellae utilise minor trace elements for colour, vibrancy and general well-being. They also depend on light to convert inorganic substances into food.
Minor Trace Elements:
Keeping the above in mind the directions of usage given by Fauna Marin state that you should not carry out any water changes, or dose minor trace elements during the treatment.
By holding off on water changes and dosing minor trace elements you are directly impacting the health and well-being of the dinoflagellates – according to Fauna Marin.
However in all likelihood, once you have stopped doing water changes or dosing minor trace elements it may take some time for them to diminish to a level that they can no longer sustain dinoflagellate growth.
To put it into perspective, I did not do a water change for 8 months.
Lighting:
Fauna Marin also explain that the maximum lighting period should be 6 hours daily in total, and that Dino X should be dosed at least 1 hour after the aquarium lights go off.
As dinoflagellates are photosynthetic, they have the ability to turn light into energy, as we know zooxanthellae also do. The lack of light with the inclusion of Dino X at the same time will have a greater negative impact on dinoflagellate.
Logic follows that if they are photosynthetic, then a complete black out would be very beneficial too.
Mechanical Media:
Further instructions advise you to turn off your UV Sterilizer and ozone generator during the treatment. You also need to remove any carbon and phosphate absorbing product.
To put it simply, all you should have running is a good quality skimmer.