Greetings,
I first noticed this stuff on my rocks a couple of weeks ago. Its in 2 different places, it does'nt seem to be spreading or getting any bigger...yet. The single bubble in the first picture is about 1/4", the small group of bubbles in the second picture is about 1/2" long.
Possibly bubble algae? How concerned should I be? Should I be taking action to remove it somehow?
I first noticed this stuff on my rocks a couple of weeks ago. Its in 2 different places, it does'nt seem to be spreading or getting any bigger...yet. The single bubble in the first picture is about 1/4", the small group of bubbles in the second picture is about 1/2" long.
Possibly bubble algae? How concerned should I be? Should I be taking action to remove it somehow?