I am experiencing an algae issue right now in my biocube29. I just want to know any tips on how to remove it. The algae is dark, almost black, that has adhered to the back wall of the biocube. It covers a majority of the back wall now and I notice that small pieces of hair algae keep growing on it too. I remove the hair algae and within what seems like a couple hours its back. I tried to remove the algae with my hand, but it appears as though that is not removing it at all. I then tried a razor blade but that was incredibly hard to use on the wall without scratching it. If I scratch at it for a bit with my fingernail it will come off the wall. Any suggestions on what kind of algae this is and the best way to remove it from a back wall without scratching the wall itself?
I'll try to get pictures up tomorrow. Thanks.