Dinos? ID help

[dudluk]

Hi,

I need a help with ID please, I think it's dinos, but not sure which one. I tried to compare it with pictures Dino ID guide, but couldn't 100% match. I'd appreciate the help.

They are mainly on sand and they go away at night.

My nutrition are quite low, phosphate 0.04 - 0.05, nitrates fluctuating 0 - 5.


Photos below:

 

[Jasongtr]

Looks like what I had, confirmed on macks dino page on Facebook, mine were not too bad and dosing silicates for a few weeks knocked them out as the diatoms that developed because of the silicate dosing out compete them - which is what you want. I didn't do water changes for ages after, too long really but It kind of killed my desire for the hobby, but it's all back on track now.

 

[dudluk]

Thanks for the quick reply! And what kind of dino was it, so I can read more about it?

 

[Jasongtr]

Mine were small cell amphidinium, treated the same way with silicates as large cell amphidinium I was told.