Tropical Aquarium Internal Filter Cristal Sponge Filter

The Tropical Cristal internal aquarium filter is a proven, air-driven sponge filter for the mechanical and biological filtration of aquariums. Its gentle water movement makes it particularly suitable for breeding tanks, shrimp tanks, and aquariums with sensitive animals or species that do not require a strong current.

The filter sponge retains suspended matter and dirt particles while simultaneously providing a large surface area for beneficial microorganisms to colonize. These support the biological breakdown of organic waste and contribute to stable water conditions.

Since the water is moved by an air lift, the aquarium water is aerated at the same time. A suitable diaphragm or air pump is required for operation.

Available variants:

BABY – for aquariums up to 30 liters

Dimensions: approx. 5 × 4.5 × 8.5 cm

MINI – for aquariums up to 40 liters

Dimensions: approx. 6 × 5 × 9 cm

STANDARD – for aquariums up to 60 liters

Dimensions: approx. 6 × 6 × 11 cm

MAXI – for aquariums up to 100 liters

Dimensions: approx. 9 × 9 × 15 cm

SINGLE – for aquariums up to 150 liters

Dimensions: approx. 17 cm length / Ø 9 cm

DOUBLE – for aquariums up to 300 liters

Dimensions: approx. 9 × 9 × 17 cm

Ideal for breeding tanks and shrimp aquariums

Due to the use of a filter sponge, there is no strong suction effect as with many motor-driven internal filters. This makes this filter principle excellent for aquariums containing fry, shrimp, and other small aquarium inhabitants.

The Tropical Cristal is therefore an uncomplicated and proven solution for aquarists who value gentle, biological filtration and additional aeration for their aquarium.

Note: A separate air pump/diaphragm pump is required for operation.