That's true actually! I was thinking about that too. I will have to keep an eye on them so there won't be dead ones in the substrate. But on the other hand that's just the way it is then
Bacteria will take care of them.

Algae In Space wrote:Turns out even the crazy algae ball „afro“ was hair algae! I've removed it all.Hair algae growing in the moss ball or the whole ball is hair algae?