Nori = sushi wraps from a Asian market is very inexpensive.

However, Nori is not a balanced diet. A good diet consists of a varied diet. Macro from a fuge is a quality food, as it contains plankton in an unprocessed state. I feed Nori every day and add a cube of a different frozen food every evening.

Formula one and two
Spirulina brine
Mysis Shrimp
Cyclops