I observed a red biofilm in my bottle of chewra dwip algae (which was rotting). I saw many bacterias buzzing around and this event:

I seperated a bit of the biofilm and kept it in the slide for a timelapse video. It kinda disintegrated and made a red solution. I will describe it later. But what’s it (rotting)? And what is the red biofilm? Need answers (** note that the red biofilm is probably photosynthetic).

Plus one thing: I suggest @Manu to make a free guide/video tutorial/short video tutorial series for everyone without much delay which will teach them how to identify organisms upto a certain taxonomic level (like class or family) by ownself if making the Identification Request System will take a long time. But if you have already collected the links of posts having identification proplems like this one, you don’t need to make it (please try to keep it in mind that it is almost impossible for one to read all posts even after checking them everyday twice and sorry for too many requests and suggestions!).

Regards

Akib.