Dinos? Please ID

[Neo Jeo]

I been dealing with this for a year. Tried different bacteria’s etc. finally got a microscope.

Please help ID. It’s a red/brown dusting on sand bed, at night. It goes away and gets worse durning light cycle.

 

[Neo Jeo]

Bump

 

[monfilsi]

Looks like large cell amphidinium. They go into sand bed at night instead of water column. I had success dosing silicates to get diatoms to out compete them.

 

[Neo Jeo]

Looks like large cell amphidinium. They go into sand bed at night instead of water column. I had success dosing silicates to get diatoms to out compete them.

Thanks, I was also thinking that. Do you think UV is any help?

 

[DDenny]

Thanks, I was also thinking that. Do you think UV is any help?

For LCA a UV will not be much help. They do not go into water column at night.

 

[thedon986]

Possible modes of attack: Dose waterglass, raise nitrate and phosphate, add live sand from Tampa Bay Saltwater or Gulf Live Rock, or other vendor, dose phyto, dose carbon at night but make sure N and P don't drop too much.....and wait.

Or rip our your sand and go bare bottom for a long while then try adding sand back later.

Have had a couple run ins with these guys and my system with Tampa Bay Saltwater rock and sand beat them back within a month. The other setup with dry rock and sand I ran out of patience after 1.5 years and started over.

 

[Lavey29]

I been dealing with this for a year. Tried different bacteria’s etc. finally got a microscope.

Please help ID. It’s a red/brown dusting on sand bed, at night. It goes away and gets worse durning light cycle.

https://www.reef2reef.com/attachments/dinoflagellateid12_12_2019-pdf.1324729/