New (3) from $4.91 Sold by CNZ Lighting and Fulfilled by Amazon. CNZ® 50pcs Black Aquarium Fish Tank Filter Bio-balls Filtration Media, 1-inch Puro-Kleen Kleen-Guard Pond & Aquarium Filter Media, 12" x 72" Used as the biological media in the filters, such as aquarium, fish tank and pond filter media. These plastic bio balls have lots of surface area for filtering the growth of bacteria, can promote gas exchange, increases dissolved oxygen level and removes harmful gases. 8 x 1.5 x 5 inches Shipping Weight: 4 ounces (View shipping rates and policies) #8,894 in Pet Supplies (See Top 100 in Pet Supplies) in Pet Supplies > Fish & Aquatic Pets > Aquarium Pumps & Filters > Filter Accessories Compare to similar items Fluval Biomax Bio Rings - 500 grams/17.63 ounces Marineland PA11486 Canister Filter Bio-Balls for C-Series Filters, 90-Count 200 Count Professional Grade Connectable Filter Bio-balls for Canister Filters, Wet-dry Sumps, and Filtration

5 star69%4 star21%3 star2%2 star2%1 star6%See all verified purchase reviewsTop Customer ReviewsPerfect for cycling|Great pricing and very quick shipping|A good bio media for its price|Much larger than one would assume|arrived quick and works great.|Comes in a netting bag which you can resus fe| See and discover other items: fish tank supplies, pond fish Water & Wood 50 Black Aquarium Fish Tank Filter Bio-Balls Filtration 50 Black Aquarium Fish Tank Filter Bio-Balls Filtration.It features plastic construction with high performance stuffing.Great for any freshwater or saltwater fish tank or mini-reef aquarium.These Fish Tank Filtration are simply rinse and use.Each ball size: 2.6cm(diameter)Weight: 236gPackage include:50 x Fish Tank Bio-Balls 7 x 1.5 x 5.5 inches ; Shipping Weight: 8 ounces #109,570 in Pet Supplies (See Top 100 in Pet Supplies) Product Warranty: For warranty information about this product, please click here 5 star53%4 star19%3 star14%2 star2%1 star12%See all verified purchase reviewsTop Customer ReviewsFive StarsThree StarsMy fish are happyGreat designBio ballsGreat Product.The quality seems fine.

The zippered pouch seems well constructed and durable ...Seem to be OK Most Recent Customer ReviewskSearch Customer Reviews See and discover other items: aquarium filtration All Pond Solutions Bio Balls Fish Tank Filter Media, 40-Piece Dispatched from and sold by Amazon.DetailsAll Pond Solutions 1000EF Aquarium External Filter, 1000 Litre/ Hour FREE Delivery in the UK. Product Dimensions16.2 x 11.5 x 7.3 cm 4,276 in Pet Supplies (See top 100)3 foot fish tank in litres Date First Available9 Sept. 2009buy aquarium chiller in malaysia This product adopts the design of multi-face and cascade, it ensures equal water running with a long flow which provides the largest surface for the nitro-bacteria and a large volume for oxygen. 3 feet fish tank india

The material of the product is best for the nitro-bacteria cultivation. Can keep the PH at neutral for a long time, increasing the nitro-bacteria density and improving the water effectively. Can also absorb and dissolve ions which can poison the fish. For use in Aquarium and Pond Filtration systems. 1 x All Pond Solutions BB-40 Bio Balls Fish Tank Filter Media 40 Pieces POND FILTER 3 GRADE MEDIA FOAM SET 17" X 11" COARSE, MEDIUM AND FINEcustom fish tank inserts Bio Balls,Govine® 500g Bio Balls Aquarium Pond Fish Tank Filter Ceramic Rings Filtration Mediacorner fish tank gumtree Aquarium Fish Tank Filter 18mm Black Biological Bio Balls 30 Pcscustom fish tank canberra See all 23 customer reviews

See all 23 customer reviews (newest first) Just what we needed Great product, great value. Simple does the job Look for similar items by categoryHow often have you read postings or email from aquarists who complain about their bio-balls going bad? The quickest and most often suggested solution we see to this problem is to, get rid of the bio-balls, now!! It is NOT the bio-balls contained in a wet/dry trickle or other type of biological filter that have gone "bad", but just like with an undergravel filter, it is the "lack of proper maintenance" that turns them into a nitrate factory. It is only when bio-balls as well as other similar types of biological filtration mediums are allowed to become dirty and encrusted or embedded with broken down matter or dissolved organic compounds (DOCs) that they then start to contribute to the accumulation of nitrate in a saltwater aquarium or reef tank system. There is no need to immediately trash or remove them, which should NOT been done in the first place because it can cause your whole system to crash, you just need to clean them up.

Once this has been accomplished, and as long as this is the "sole source" generating the nitrate in the aquarium, with some water changes and by keeping to a good regular maintenance routine after that, nitrate and bio-balls woes in all likelihood will decrease.How can you tell if the bio-balls are dirty?One way you can test to see if it's time for a cleaning is by ruffling or lightly stirring up the top layer of the bio-balls. When this is done you will see gunk break loose from them. The only problem is that in most all cases the mass of the organic matter settles in the bottom layer of the bio-chamber, because it gets pushed down by the water dispensed into the filter over time. You can stir the bio-balls up from the bottom to see how things look, but be careful doing this. If the filter is running and the output water goes directly back into the aquarium without being filtered first, it can shoot a bunch of the gunk right into the tank. To prevent this you can place a micron-mesh bag that is fine enough to catch the organic matter as the water is dispersed into the tank.