Laguna Biological Bio-Max

Smaller than the 350 Gram you get a lot more for your money 4 pounds. Plus there's more holes for the good bacteria to live in I used it in my pre filter and in my waterfall filter. You save a lot of money purchasing Pond equipment off of Amazon. It will cost you a lot more to go into a pond store or fish store that sells Pond equipment a lot more. Plus they come in a netted bag that keeps them from floating around. I highly recommend purchasing them and will purchase again next year.

These are Fluval big ceramic rings, a very good product.

For the price charged I would have thought there would have been more of the product.

ok

Only had a short time and clean often, pond is still not clear hoping time will resolve the issue.

So much more than anything FLUVAL will provide at HALF teh cost! I love how this media works! it is VERY Porrous and not slick like the previosuly mentioned brand is. I will buy more of this product!

pour tous les aquariophiles c'est le complément idéal à vos pompes, excellent produit et la contenance est idéale surtout si vos pompes sont grandes, idéales pour remplacer les filtres en éponges!!! un beau geste pour l'environnement