Marineland Bio-Filter Balls, 90 Count, Support Biological Aquarium Filtration, Rite-Size S, T and X, Fit All C-Series and Magniflow Canister Filters

Know what you are buying and it’s a perfect fit. High quality products from a quality company!!!

We have an outdoor goldfish pond that gets pretty rank in the Summer. These little balls cleaned up the algae in only a few days. Totally worth it!

Great value. Works well. Easy to use. Helps with algae.

I have used these for years in aquariums and my goldfish pond to give bacteria somewhere to grow. These are sized just right to fit ten or so behind the filter pad and the rear of my hang on filter. I like to do this because it encourages bacteria to grow on the balls rather than the pads that get replaced. When the pads are changed these help carry the bio load. They also help out in the event of an undetected dead snail or fish that spikes the ammonia. I view these as an insurance policy because the more places bacteria lives and can multiply if needed the better. These really shine in a cannister filter. Fill a basket with these and you are set. I like that these allow water flow and will allow most waste through to get caught in the filter pad. There are a ton of choices for filter media available but for the price and quality I have found these hard to beat. One box is a lifetime supply and I highly recommend.

Bueno

I have a multi stage canister filter for my 125 gallon tank. These things work wonders in keeping my tank clean. A quick rinse every so often when I pull the filter off and they are good to go. They work so well, I started using them in my small outdoor pond (40 Gallon or so) and they helped keep my pond clear all summer in a homemade bucket filter.

These work well to promote a healthy environment for fish, would recommend buying these.

I received these bio balls in the mail yesterday,and they are small but perfect for bio filtration. I purchased these for a large hob filter to have extra space for useful bacteria to have more area. They are good quality for the price . Easy to use. I rinsed with hot water and put them in. I will update at the performance asap. Time will tell as to how long they last.

Great product

Came exactly as described, good choice if you need/want media for your filter that you can simply rinse (with tank water to keep good bacteria!) and reuse time and time again.

Las uso para un filtro canister, son recomendables para filtración fisica y biologica, les recomiendo usar arriba de estas biobolas, canutillos de ceramica

Me gusta esta marca de bioesferas, las intale en el sump de mi acuario. Proveedor envia justo lo que está publicado, buen producto.

Nice product to generate beneficial bacteria