I have been removing one rock at a time to dry and scrub the yellow sponge invasion away .
I’ve noticed in this one particular rock there is a large part that’s black ...
not sure what it is or if scrubbing is such a good idea .
any help identifying and suggestions to remove some of the yellow sponges
I’ve noticed in this one particular rock there is a large part that’s black ...
not sure what it is or if scrubbing is such a good idea .
any help identifying and suggestions to remove some of the yellow sponges