(12/27/2004) - The blade is the best that i have found for acrylic tanks cleaning. It will even remove small patches of coralline. Sharpening it with a flat file will prolong its useful life.

(10/22/2007) - Used to use a scubber pad w/ my acrylic tank and it was ineffective. This scraper removed algae the scrubber couldn't even dent. I love it so far. My tank has never been so clean.

(03/26/2007) - I bought this items with the blade for glass tanks and it scratched the living crap out of my glass tank.

(09/20/2005) - The scraper is fine for acrylic tanks, as long as you keep it sharp. I usually need to take the scraper blade out once per week and sharpen it with a file to keep it working well.

(10/14/2004) - It is totally useless on coraline algae. That dull plastic blade can hardly scrape off diatoms....

(02/28/2005) - I have a glass tank and the plastic blade is worthless on this scraper. Kent has certainly exaggerated the benenfits of the plastic blade. I ordered the stainless steel blade, and it made all the difference in the world. An excellent scraper for deep tanks, the stainless steel blade will certainly take off coralline algae. I can't make any sugggestions for those with an acrylic tank, but if it is glass, get the stainless steel blade. The fiberglass handle is strong and flexible.