Dinoflagellate
Dinos are one of those reefing topics that is intensively emotional. Many reefers decommissioned or restarted their aquarium due to dinos, while many others claims that dino can be wiped out by simply adding product X or equipment Y. Truth is, if the aquarist takes correct actions, dino problem does not automatically means high casualties or tank reset. On the other hand, what some aquarists' triumph against dino, may in fact be victory against a less insidious foe. Let's take a closer look at dinoflagellates to understand better what we are dealing with.
I would like to start by discussing two myths about dinos.
1. All dinos are the same/similar
There are about 2000 different species of dinoflagellate, almost half as much as that of corals. These different species of dino occupies different niche in the ecosystem. It's therefore unhelpful to consider all dinos the same, especially when it comes to considering treatments for dino bloom.
2. We can identify dino infestation just by looking at the aquarium.
Of course, there are certain signs which point strongly towards dino outbreak. For example, stringly bubbly brown films hanging on the coral. We can only have positive identification once the sample is observed under microscope. See a brown patch on the sand bed? Is that diatom, dino, or cyano? Identification with naked eyes is unsatisfactory. To make matter worse, several different species of dinos may look the same to our eyes, but require somewhat different approaches to overcome them. Therefore, the first step of winning against dino is to know exactly which species of dino we are dealing with. If not, any action we take is just a shot ib the dark.
As my aquarium is in the midst of a dino outbreak, it's a perfect opportunity for me to take a closer look at the topic of dinos.