Red Sea Foundation B KH 5L — Alkalinity & pH Stabilizer for Coral d-d camera Reeflowers Iceland Black Sand (3-5mm)

Reeflowers Iceland Black Sand (3-5mm) 7kg is an ideal substrate for soft water aquariums

and built for long-lasting performance

Provides precise control over water chemistry

it is the perfect complement to the Red Sea Magnesium Pro Test Kit

and invertebrate health in established reef aquariums

Red Sea Foundation B KH 5L — Alkalinity & pH Stabilizer for Coral d-d camera Reeflowers Iceland Black Sand (3-5mm)Red Sea Foundation B KH Alkalinity 5 Litre is an essential supplement for maintaining proper alkalinity and pH levels in your reef aquarium. This product contains a complex of carbonate and other natural buffers found in seawater, which help stabilize alkalinity and support optimal coral growth. Alkalinity is a key element in coral skeleton formation, working alongside calcium, magnesium, strontium, and carbonate to ensure balanced water chemistry.