Serenity Double Sponge Filter Double Ended perfect for the small to

perfect for the small to medium reef tank

while basic or alkaline water will measure between 7 and 14

Can be used in fresh water and marine aquariums

Contains prebiotic bacteria and garlic extract which help improve the digestive system

Regular testing for nitrite is recommended – chronic exposure to even low levels of nitrite can cause brown blood disease in fish which can cause suffocation and death

Serenity Double Sponge Filter Double Ended perfect for the small toTurbo Double Sponge Filter Perfect for small size fish breeding Provides mechanical & biological filtration Increases oxygen in the water Simple to set up and use Beneficial to bacterial colonisation Easy to clean and low maintenance multi layer filter design Sponge size 12x6cm Telescopic height adjustment