Day 5 of Maracyn treatment and still green BGA present
Today I will be adding the fifth dose of Maracyn to my 30 gallon planted aquarium to treat Cyanobacteria. I have been dosing three packets per day.
On day 2 I saw a reduction in the appearance of bright green spots of algae on the substrate, but ever since then, it appears that the bacteria is still present, green again, and seemingly alive and kicking.
Tonight I am going to carefully remove the top layer of gravel in every area where the bacteria is present, and dose again with the Maracyn.
My photoperiod is 6 hours with no other daylight sneaking in.
Any other suggestions to treat this?