Growing algae and cyanobacteria in an apparatus with a first light guide for concentrating light wherein the apparatus is capable as acting as a second light guide
594885 Disclosed is an algae containment apparatus (50) for growing an alga or a cyanobacterium, the algae containment apparatus (50) including a first light guide (76). The first light guide (76) is a luminescent light guide comprising a first luminescent material and guides light to the algae containment apparatus (50) underneath the first light guide (76). The first luminescent material emits visible light suitable for growing the alga or cyanobacterium or emits visible light suitable for absorption by a second luminescent material. The algae containment apparatus (50) is capable of forming a second light guide.
