These Algae Scrubber do a nice job with cleaning the aquarium glass of algae, but they do disintegrate very quickly.
These are a must have for me. I scrub, boil, dry, then reuse about 3 times.
When I saw this on the store, I asked if it would be safe for a acrylic. They showed me they use it everywhere. I bought a bunch of other "sponge"/tools to help cleaning, this is by far the most used item for scrubbing anything. The sponge is soft and as long as you don't trap any between it and the acrylic it won't scratch (at least has not for me).
You can cut it down to manageable sizes for cleaning anything, pushing through tubes to clean the inside, etc.
It is not really single use item, but if you squeeze hard it breaks down in a few uses. I'm fine with that.
If I was to complain about anything, I'd wish we could get a bulk buying option with better price - I keep a stack of about 5-10 of these new, since I use them all the time and need to toss one out every other week.
Things work really great and are a good price. Came quick with no issues
I picked this up as I wanted to try it out. it works great. As with other reviews, it is fragile but I have already reordered another one.