Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Meh

There is something to be said for this scraper, it's somewhat effective. I purchased this to clean the back of my glass aquarium where I cannot reach with my trustyMag Float-130A Magnetic Cleaner for Acrylic - Medium - up to 125 Gallon. It didn't do a very good job and wasn't terribly easy to get at that perfect angle. I've found it far easier to use a razor blade edge to scrape off coralline algae (don't care for it on my glass) than to use the scraper and my tank is 24" deep.There's certainly something wrong with a product if you'd rather use a straight razor blade and shove your arm into your aggressive reef tank, risking being stung by your lion or scorpionfish, or bitten by your eel, than use a scraper.