Controlling dinoflagellates with Metronidazole

[rsisvixen]

Out of curiosity, if a tank has been running for such a long time where would the dino have come from? Is it something that happens from spores in the air finding water like some algae's or is it something that needs to be introduced via corals or live rock?
Or is it something like cyno which is bacteria with the ability to photosynthesize?

[Frogger]

Originally Posted by rsisvixen

Out of curiosity, if a tank has been running for such a long time where would the dino have come from? Is it something that happens from spores in the air finding water like some algae's or is it something that needs to be introduced via corals or live rock?
Or is it something like cyno which is bacteria with the ability to photosynthesize?

How does anything we don't want get into our tanks. From the live rock, from live sand, from corals we add. Likely the dinos have been there for a long time, once conditions became ideal their population exploded.