RESUN Bio Balls are an environmentally made plastic that can be used in both fresh water and marine tanks for biological filtration. They are designed with a large number of flexible spikes to maximize surface area for the colonization of aerobic bacteria. Water can pass through them easily, allowing a constant flow back into the aquarium. They are light weight and can be used in any filter. 100 Bio balls is approximately 5 litres.
RESUN Bio Balls 40mm;
- Quantity 100 Balls
- 40mm Diameter
- 100 Balls Is Approximately 5 Litres
- Can be used in any Canister or Sump Filter
- For Fresh & Salt Water