EasyPro Bio-Balls Biological Filter Media Size:1 Cubic Foot (~600 Count) ideally held within a filter

ideally held within a filter bag

choline chloride

Nessler's total ammonia test will give false

2" bottom drain or 3" bottom drain

Maximum color is usually achieved after 4-6 weeks of use

EasyPro Bio-Balls Biological Filter Media Size:1 Cubic Foot (~600 Count) ideally held within a filterEasyPro Bio Balls are a great, plastic biological media that will not compact like other soft media, reduces channeling of water. They can be used in all types of filters, and can be used loose or put in mesh bags for easy removal and cleaning. 1. 5" in diameter Approximately 660 pieces per cubic foot SKU Description BB05 200 Count with Mesh Bag BB15 1 Cubic Foot (Approximately 600 Bio Balls)