Any advice for "cleaning" java fern? As you can see from the below pictures, I've got a mass of yuck on some. I think it's a mix of algae and an algae wafer that I threw in before a trip that my Otos left to rot. I used a toothbrush on the needle leaf and hairgrass (and future trimmings will get the rest), but I'm wondering if I shouldn't just cut the java fern.
