Ostreopsis Ovata?

devimik · 10/31/2018, 09:45 PM

I've had Dinoflagellates in my tank since treating Bryopsis with Fluconazole. Got a microscope I had been wanting today and took these shots. I think it's Ostreopsis - anyone agree? I think the clear spindly ones are Cylindrotheca diatoms.

bertoni · 10/31/2018, 11:56 PM

I can't id much of anything of that size.

Maybe someone else can help, though.

sfdan · 11/01/2018, 01:40 AM

Yup that is 100% Ostreopsis. They are easy to identify even with much less zoom based on their circular motion, which you can see in these videos, but if you have a microscope capable of this type of zoom and focus then it also makes it easy

My first Ostreopsis bloom also happened right after I dosed Fluconazole leading me into a very depressing next few months of battling them. But if I knew then what I know now, I'd have probably taken care of them in a few weeks with minimal losses. Ostreopsis are toxic and can cause a lot of damage, but are very treatable with the right strategy and equipment.

Read this thread in which I gave advice to somebody else dealing with Ostreopsis. Feel free to PM me or quote me if you have any other questions.

devimik · 11/01/2018, 07:49 PM

Thanks - I did see them spinning in a wider scope view - I'll check out the thread and let you know if I have questions. This stuff is frustrating, but I'm determined to get rid of it.

MarlinDreams · 12/13/2018, 09:39 AM

You're a lifesaver sfdan, thanks for the information on cures.
JC

rjjr1963 · 12/20/2018, 12:06 AM

Ostreposis. UV filter cleaned them out in about 2 days.

https://www.youtube.com/watch?v=1o2alraNmsY

10/31/2018, 09:45 PM	#1
devimik Registered Member Join Date: Dec 2012 Location: KC, KS Posts: 637	Ostreopsis Ovata? I've had Dinoflagellates in my tank since treating Bryopsis with Fluconazole. Got a microscope I had been wanting today and took these shots. I think it's Ostreopsis - anyone agree? I think the clear spindly ones are Cylindrotheca diatoms. __________________ Mike D Coral Beauty, Green Filefish, One Spot Foxface, Springeri Dottyback, 2 Ocellaris Clowns, Yellow Watchman Goby, Flame Hawkfish, Spotted Mandarin Current Tank Info: 90g Softie Reef, 150# live rock, 30g sump w/refugium, Tunze Osmolator 3155 ATO, Octopus NWB 150 Skimmer, Mag 950 return, Maxspect 120w Razor 10K LED light X2, BRS Phosphate Reactor; Apex Lite

10/31/2018, 11:56 PM	#2
bertoni RC Mod Join Date: Mar 2002 Location: Mountain View, CA, USA Posts: 88,616	I can't id much of anything of that size. Maybe someone else can help, though. __________________ Jonathan Bertoni

11/01/2018, 07:49 PM	#4
devimik Registered Member Join Date: Dec 2012 Location: KC, KS Posts: 637	Thanks - I did see them spinning in a wider scope view - I'll check out the thread and let you know if I have questions. This stuff is frustrating, but I'm determined to get rid of it. __________________ Mike D Coral Beauty, Green Filefish, One Spot Foxface, Springeri Dottyback, 2 Ocellaris Clowns, Yellow Watchman Goby, Flame Hawkfish, Spotted Mandarin Current Tank Info: 90g Softie Reef, 150# live rock, 30g sump w/refugium, Tunze Osmolator 3155 ATO, Octopus NWB 150 Skimmer, Mag 950 return, Maxspect 120w Razor 10K LED light X2, BRS Phosphate Reactor; Apex Lite

12/20/2018, 12:06 AM	#6
rjjr1963 Registered Member Join Date: Dec 2015 Location: Nebraska/Missouri Posts: 770	Ostreposis. UV filter cleaned them out in about 2 days. https://www.youtube.com/watch?v=1o2alraNmsY __________________ 72x24x16 115 gallon under construction Current Tank Info: 40 gallon reef

11/01/2018, 01:40 AM	#3
sfdan Registered Member Join Date: Nov 2015 Location: San Francisco Posts: 451	Yup that is 100% Ostreopsis. They are easy to identify even with much less zoom based on their circular motion, which you can see in these videos, but if you have a microscope capable of this type of zoom and focus then it also makes it easy My first Ostreopsis bloom also happened right after I dosed Fluconazole leading me into a very depressing next few months of battling them. But if I knew then what I know now, I'd have probably taken care of them in a few weeks with minimal losses. Ostreopsis are toxic and can cause a lot of damage, but are very treatable with the right strategy and equipment. Read this thread in which I gave advice to somebody else dealing with Ostreopsis. Feel free to PM me or quote me if you have any other questions.

12/13/2018, 09:39 AM	#5
MarlinDreams Registered Member Join Date: Jun 2004 Location: Tulsa, Ok Posts: 214	You're a lifesaver sfdan, thanks for the information on cures. JC