Dinos? Please ID

Neo Jeo

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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.

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monfilsi

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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.
 
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Neo Jeo

Neo Jeo

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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?
 

thedon986

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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.
 

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