Removing coraline off of glass

[Scavenger]

I personally went to Canadian Tire and bought a glass scraper. (Bennet brand name??) Anyway it's a retractable blade and handle assembly. The handle is all plastic and the blades pop right out easily and are about 3 inches long. Works great, clean tank, pop blade and rinse the whole unit. Good for next time. bought a pack of refill blades too. I think the whole shebang was about $5.00 or so.