So I've been battling cyano for a little over a week now. Last Fri I removed all the hard scape and scrubbed it with a wire brush, trimmed all cyano from plants then blacked out for a day. My normal light has been reduced to 6hr a day. It's not bad, yet. It's just on a few blade of hair grass and I noticed a spec or two on my ludwigia, as well as a small spot or two on my driftwood. I can't really do a week blackout as I'm still trying to get my plants adjusted (the tank is only about 3 weeks old). I'm going to do some more deep cleaning Fri probably. Any advice outside of antibiotics?