JUWEL Bio Flow Extra Large 8.0 Refresh Kit (6pk)   INCLUDES:   1x JUWEL BioCarb Carbon Sponge Jumbo 8.0 (2pk) JUWEL Carbon Sponges absorb odour compounds and turbidity as well as toxic compounds in your aquarium, leaving the water crystal clear...

JUWEL Bio Flow Large 6.0 Refresh Kit (6pk)   INCLUDES:   1x JUWEL BioCarb Carbon Sponge Standard 6.0 (2pk) JUWEL Carbon Sponges absorb odour compounds and turbidity as well as toxic compounds in your aquarium, leaving the water crystal clear...

JUWEL Bio Flow Medium 3.0 Refresh Kit (6pk) INCLUDES: 1x JUWEL BioCarb Carbon Sponge Compact 3.0 (2pk) JUWEL Carbon Sponges absorb odour compounds and turbidity as well as toxic compounds in your aquarium, leaving the water crystal clear. The fact that...