Imagine a farm 'crop' that can obtain over 90% of its
nutrition requirement from its 'own' photosynthetic algae.
And when particulate organic matter (POM) is present,
the 'crop' can obtain about 33% of its carbon
requirement from POM.

Imagine a farm 'crop' that also acts as a natural bio-filter,
taking up dissolved ammonia and nitrates from the
surrounding environment to supply its 'own'
symbiotic algae with nitrogen for 'self' growth.

Imagine ...