So, it's a filter cartridge. For a specific type of aquarium filter and a specific type of fish. I happen to have that type of filter and that type of fish so... thumbs up, I guess.Phoenix, the betta I bought the product for, isn't a great conversationalist, but he seems to be satisfied at how it's filtering his 10 gallon tank. At minimum he hasn't complained. There is some algae growing so perhaps when I get a snail to put in there they'll chat and I may be able to get the real scoop on what they think of it.
Rating:
[5 of 5 Stars!]