🐠 ELIVING Bio Balls & Mesh Bags Aquarium Filter Media Set - 500 Ct .6 Inch Bio Balls - Ideal Koi Pond Canister Filter, Freshwater & Saltwater Sump - Fish Tank, Pond Filter Media Review

Seems fairly well made like it has a mesh maintenance pouch. Spheres are small enough to fit in a bottle cap if you want to make your own filter

I use them in a small pond and they are small enough to use in a bottom filter. The quantity for the price made the purchase that much better.

Just received these last week so obviously haven't had time to see how much they affect water quality. But they seem to have a large surface area, so in theory they should work.

I have a large garden pond with a skimmer filter on one end and a "waterfall" (landscape) that also doubles as a filter on the other. I use these organic beads in a large waterfall and arrange it over a layer of filter material. Beneficial bacteria live in these balls, in which they multiply. This keeps the pond healthy all year round. Helpfully they provide 5 mesh bags to store the bio balls. The bags have a zipper, there is no metal in it, so it won't rust. The balls are made from…

My husband wanted to buy these Bio Beads for our new 135 gallon water box. Since this is a brand new object, we had to work on it for a while before we could add our existing fish or new fish to the environment. If you are reading this you will know that all aquariums need good bacteria to thrive. The balls are made of high density polypropylene and look high quality. The 5 stainless steel pouches are also great for keeping those balls safe and healthy. My husband put several of these…