Bubble algae !! Help!!

[PeterEde]

I had a couple and injected with peroxide. They dissolved inside out

 

[gbroadbridge]

Over the last 30 tears its been a question and of debate but yet many have seen hundreds in a large system. They dont lay eggs- so what is the answer?

There's no debate.

It's a unicellular organism that replicates by cell division. Thats's it.
No rocket science