🐠 Optimize your Aquarium Filtration with CNZ 50pcs Bio-Balls Filter Media for Black Fish Tanks, 1-inch (1-Pack) Review

Have a 40 gallon pond and place it in my cascading waterfall in the back, catches algae changes every 2 weeks in warmer weather but does it

Received quickly, great price! I ended up having to take something out, so I have some left over to use on another tank filter! Great product so far!

These bio balls are a good environment for bacteria, the only problem is that the balls can float in water. I just leave them in my pocket with a little rock from the tank in my pocket to make them heavier.

I love how they put little pieces of sponge in the balls to increase the surface area for good bacteria so 50 balls is actually 100, well maybe not. a lot, but you get what I mean, besides, it's by no means easy for them to sit there and open all these balls and put a piece of sponge in them, for that I lean towards them

I use these for cycling new tanks. I keep a few in all my aquarium filters and when I set up a new aquarium I remove them from the existing tanks and put them in the new filters. This significantly reduces the time it takes to cycle a new tank. They stand up to the test of time very well, do not impede flow or clog the filter. They're well made and the case they come in doubles as a media case for them, although I only put them in my filters on their own.

I like them a lot better than a lot of other cheap Bio Balls I've seen. It is a hollow bowl with a small sponge inside each. Many cheap bio balls have a hard plastic core which takes up a lot of space in your filter as no water or bacteria can get into the hard center of each ball. I prefer ceramic rings for biofilter media, but they are both more expensive and heavier. The filter I ordered them for is a wet dry over tank filter which is a mini version of the Bakki shower for carp ponds. Since…