Dinos?

[Ryan Kindle]

Im assuming dinos? Looking for confirmation just in case

 

[Ryan Kindle]

.

 

[Dan_P]

Im assuming dinos? Looking for confirmation just in case

Hard to say from the pictures. To start the analysis though, take a pinch of the surface growth, including the sand and place it in a small, clear container of tank water. Gently swirl it in the water.

Filamentous growth like algae will resist breaking up. Filamentous cyanobacteria films if thick enough will also resist breaking up. In either case, you will get a better view of the clump and may see tiny filaments. Diatoms and dinoflagellates are single cells that stick together with mucus. No permanent filaments. This type of film breaks up quite easily. Posting a photo of the swirl mess could be useful.

This a not rigorous test for identifying organisms but the results could be a good conversation starter.

 

[Ryan Kindle]

Hard to say from the pictures. To start the analysis though, take a pinch of the surface growth, including the sand and place it in a small, clear container of tank water. Gently swirl it in the water.

Filamentous growth like algae will resist breaking up. Filamentous cyanobacteria films if thick enough will also resist breaking up. In either case, you will get a better view of the clump and may see tiny filaments. Diatoms and dinoflagellates are single cells that stick together with mucus. No permanent filaments. This type of film breaks up quite easily. Posting a photo of the swirl mess could be useful.

This a not rigorous test for identifying organisms but the results could be a good conversation starter.

THis help at all?

 

[Dan_P]

THis help at all?

Can’t this on iPad. Sorry

 

[taricha]

The tank pics and the video make me think there is some green filamentous algae (GHA) in there holding stuff together. Then other things growing on it as well.
The video of the swirling water makes the color look very much like GHA / green cyano and not much brown dinos.