Tate
Aquarium Advice FINatic
- Joined
- Dec 17, 2013
- Messages
- 552
I have a sea life systems 75 protein skimmer on my 90 gallon fowlr tank with just two crabs when I run the skimmer plenty of bubbles rise and when I turn it off later there is dark scum on the neck. It only has created a foam head once and it just pulled out milky substance. Is there any reason why this is happening