21mm Bio Balls Aquarium & Pond Filter Media Quantity?:100 BioBalls less odours and it reduces

less odours and it reduces the maintenance of your aquarium creating ideal condidtions for fish

The main factor in successful fish keeping lies in the maintenance of good water quality

Water level must be no lower than 60mm from tank rim

Fits Pontec Pondopress 5000/10000/15000

Simply toss a sachet into your pond once per week and it will dissolve to counteract incorrect pond nitrate and phosphate levels

21mm Bio Balls Aquarium & Pond Filter Media Quantity?:100 BioBalls less odours and it reduces21mm Bio Balls Aquarium & Pond Filter Media Premium Bio Balls Standard 21mm Filter media forms an essential part of any aquarium or pond filtration system. Our 21mm Bio Balls provide a large surface area for bacteria to develop, helping to break down ammonia and nitrite. Bio Balls also help improve overall water quality by maintaining healthy oxygen and PH levels, and absorbing and breaking down poisonous ions. Long lasting and highly effective, our