Dino identification and treatment options please

[shepe]

Anyone help with an ID on these please?

 

[Dan_P]

Anyone help with an ID on these please?

@EnterName, Amphidinium? What about the associated small oval cells?

 

[EnterName]

@EnterName, Amphidinium? What about the associated small oval cells?

Both "Amphidinium". The large ones could also be Testudodinium cf. magnum but the community treats them as Amphidinium so let's ignore that

 

[shepe]

So the type that UV doesn’t do a great deal against then :-/
Got some research to do now around best way to treat

 

[EnterName]

So the type that UV doesn’t do a great deal against then :-/
Got some research to do now around best way to treat

I would keep using UV. The community relies on some old info that's partially flawed. While UV might not be as effective against certain dinoflagellates it will still have an impact to some degree. Just make sure your UV unit is adequately sized and you are using sufficient but not too much flow through it (the manufacturer should provide some instructions saying how much gallons/liters per hour should be circulated through the unit).

 

[shepe]

I would keep using UV. The community relies on some old info that's partially flawed. While UV might not be as effective against certain dinoflagellates it will still have an impact to some degree. Just make sure your UV unit is adequately sized and you are using sufficient but not too much flow through it (the manufacturer should provide some instructions saying how much gallons/liters per hour should be circulated through the unit).

Thanks given that Amphidinium are mostly sand based? And I’ve got them all over my rock work and zoas I’ve just taken a sample from by one of my zoas and it looks like this, are these also Amphidinium?

 

[EnterName]

Thanks given that Amphidinium are mostly sand based? And I’ve got them all over my rock work and zoas I’ve just taken a sample from by one of my zoas and it looks like this, are these also Amphidinium?

[Media]

Yes, those are all cf. Amphidinium spp.

 

[Dan_P]

I would keep using UV. The community relies on some old info that's partially flawed. While UV might not be as effective against certain dinoflagellates it will still have an impact to some degree. Just make sure your UV unit is adequately sized and you are using sufficient but not too much flow through it (the manufacturer should provide some instructions saying how much gallons/liters per hour should be circulated through the unit).

In my experimental aquaria, my Amphidinium form pelagic blooms. Could be a different species though. Anyway, while we perceive benthic dinoflagellate films, couldn’t they also be in the water column and be susceptible to UV?

 

[EnterName]

In my experimental aquaria, my Amphidinium form pelagic blooms. Could be a different species though. Anyway, while we perceive benthic dinoflagellate films, couldn’t they also be in the water column and be susceptible to UV?

Yes, that's what I'm saying. Obviously people take samples from the substrate where they can see the mucus, but with a plankton sieve you can find Amphidinium cells in the open water column. Maybe not as many as Ostreopsis, but it's not like they will never leave the substrate.