Aquatic Experts 1.5" Large Bio Balls for Ponds – Biological Filter Media for Waterfalls & Outdoor Pond Filters, Treats Up to 1,000 Gallons (300 Count + 14" x 20" Mesh Bag)

It's a big bag. Great for adding surface area for bacteria. Placed the bag in my Biosteps filter, hopefully helps prevent crashes. Great quality. Better than the cheap Chinese stuff. Initially thought it was expensive but now I think you get what you pay for. Worth it

Very effective, and easy to clean

I have been using fiber filters, but they breakdown too quick. The Balls were very inexpensive, and easy to install. The balls have trapped so much algae breakdown. Balls are easy to clean, we have a bucket with holes drill in bottom, pour balls in bucket and just blast them clean. Balls should last a very long time? All around money saver for my pond maintenance. Once new balls have been installed, I have notice pond water stays cleaner for a longer period of time. I would recommend this item for your pond water cleaning.

Seems to work well, but the bag seems fairly small for my pond filter area. Could probably use two bags but we'll see how one goes. Beats lifting lava bags as they are super light weight. In fact, had to put some weight into the bag to make sure it stayed put.

We have a waterfall and small pond with only a biological filter, so I was looking for a little more space to grow good bacteria. I used to have large Saltwater tanks that I used bio balls in, so I purchased these bio balls and placed them in our pump housing in order to get more surface area for good bateria. Still working on stabeliizing the biological filter, but water is already more clear.

works good gathering a lot of the algae and debris

Good value

I have a similar product that came with the filter & wanted a backup. The original product is a larger bag with a draw string. This one is a smaller bag with a zipper. It doesn't actually fit in the filter as well a it should. Disappointing.

LOTS of balls! I actually took half out. Totally catches algae. I rinse them periodically . Put them in my waterfall container. Helps a LOT. Worth the $$

As is typical of pond equipment from Aquascape, it retails for a crazy pricing structure, and they don't even manufacture any of the products. They mostly originate from cheap Asian resources, and of course, you get what you pay for. In this case the Bia Balls does the job intended however, the quantity one gets for the price doesn't come close to be adequate for the typical volume of Bio Falls equipment. Won't be purchasing anymore stuff from Aquascape.