That is a different thing from Star Jelly.Seriously, it's toxic to pets, and humans.
https://www.vet.cornell.edu/departm...green-algae-poisoning-cyanobacteria-toxicosis
Screenshot in case you can't access the website:
View attachment 4211191
Edited to add, there are at least 2,500 different types of cyanobacteria, possibly as many as 8000 different species of it. The one in blue green algae is not the same as the one known as Star Jelly and about which I posted.