Fluval SPEC / EVO / FLEX foam block Zoo Med Laboratories Features black texturized cylinders that

Features black texturized cylinders that perform as combination refuge/dispenser tubes

Promotes healthy skin and provides relief from itching caused by inflammation

Seachem’s Tanganyika Buffer™ (pH 9

Concentrated blend of marine zooplankton

Calcium Sulfate

Fluval SPEC / EVO / FLEX foam block Zoo Med Laboratories Features black texturized cylinders thatThe block of filter foam for Spec, Evo and Flex aquariums provides effective mechanical filtration by trapping large particles and debris. The filter foam block is suitable for the following aquariums: Evo 19 L (5 US gal) (10528) Evo 52 L (13. 5 US gal) (10531) Spec 10 L (2. 6 US gal) (10515 and 10517) 19 L (5 US gal) spec (10516 and 10518) 34 L (9 US gal ) flex (15004) Characteristics Specially designed for Spec, Evo and Flex Fluval table aquariums;