Do these commercial scrapers work on hard green spot algae? That's the only algae I have a bit if trouble with. I've been considering a metal scraper but one of my tanks is a 72 bowfront so I figure a flat scraper isn't going to be a great option there.I use the Aqueon version on my bow front 180 gal, its on the upper left hand corner. The tank is glass.
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also used the Mag Float, and find if you put a piece of clothe between it and the outside glass, you get double duty
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That's actually brilliant!With algae that has taken root in the microscopic fissures in the glass over time, it can be difficult.
These commercial type are good if used daily, or every other day to get algae that's not yet fully established, for that type I use this.
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