Hello,
Today while doing a waterchange I found this black stuff. It's soft and squishy but can't be blown off. It's really stuck on there. It's on an empty shell.
What is it and should I remove it?
Today while doing a waterchange I found this black stuff. It's soft and squishy but can't be blown off. It's really stuck on there. It's on an empty shell.
What is it and should I remove it?