For the past month or so, green algae has completely taken over my tank. It's on the walls, the plants, the caves, and every other place you can think of. It's even growing on the fins of my poor butterfly fish! I've tried everything from water changes to using flourish excel to kill the bba to using some apI algae killer to get rid of it, but nothing seems to work. I just put the algae killer in 2 days ago, so maybe it will work, but it says to add another dose every 3 days, so you'd think I'd see a tiny, tiny bit of the algae turning colors or falling off, but that isn't the case. I have a rubber lip pleco and 2 nerite snails in there, but the never touch the algae on the plants or caves, and seem to be losing the battle with the algae on the glass. I have no idea what to do, and if I don't kill this stuff soon, then it will starve my rotala and anacharis and leave my tank a dirty, green mess. If you have any info on how to kill this algae, please help!