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I have a 55 gallon with 4 Cichlids and two plecos. I recently noticed small green dots all over the glass. I tried to use my long handle scrub but it won't take it off the glass. What type of algae is it and how can I scrape it off?
If you scrape it off it will just come back worse than before, you have to let it run its life cycle. There's some imbalance in your tank which is the cause for the algae.
But if you're dead set on removing it use a razor blade.