Stentor, possibly Roeselii since it's colorless and the macronucleus is worm-like
![Image](https://i.imgur.com/LPE8uyv.jpg)
![Image](https://i.imgur.com/YZHsZsm.jpg)
Gastrotrich
![Image](https://i.imgur.com/GL7rPKt.jpg)
Lacrymaria
![Image](https://i.imgur.com/L89rM1M.jpg)
Euplotes, cyclydium, and amoebae
![Image](https://i.imgur.com/DAfwC73.jpg)
Lots of different amobae
![Image](https://i.imgur.com/gskOGRE.jpg)
![Image](https://i.imgur.com/qsRLvwl.jpg)
![Image](https://i.imgur.com/pJLmgJH.jpg)
![Image](https://i.imgur.com/IeKpdet.jpg)
Urocentrum
![Image](https://i.imgur.com/uvRuw9L.jpg)
Rotifer, possibly Euchlanis?
![Image](https://i.imgur.com/xDMkq4O.jpg)
Thanks Bob! I actually followed your guide on soil + paper towel + gravel for the substrate.MicroBob wrote: ↑Sun Feb 21, 2021 4:51 pmGreat images, thank you for posting them! A plancton aquarium is really a joy - even if there is only 15 Minutes of free time one can have a quick look at what is going on in there. I have Lacrymaria in my pond aquariums too - very interesting to observe, especially when they make a bigger catch.
Bob
Thank you actinophrys for the identification. Just visited your guide, it's a very helpful reference with great pictures.actinophrys wrote: ↑Sun Feb 21, 2021 7:57 pmFor the record, the rotifer is a Lepadella, where the foot is in a distinct notch in the lorica. In Euchlanis the lorica is instead folded over the foot, which emerges from a space between dorsal and ventral plates.
Hi Ross, yes this is DIC on Zeiss Standard, the one with individual prism sliders for each objective. I'm still new to this method and learning the ropes, but I think DIC is more forgiving than phase contrast in terms of specimen/water thickness, layers, and cleanliness of cover slips. In phase the halos due to dirt and other layers will easily mess up the image. The amoebae in the pics for instance are at the bottom, with a thick water layer and not so clean cover slip - also heavily cropped using a 16x objective (contrast is enhanced).