Caulerpa and chaeto for importing of nutrients, which one is best and why?

These photos are close ups of two highly efficient importers of nutrients and naturally forming marine toxins.
They look at the content with in the flesh of these importers by comparing the generally used taxifolia to our local form of racemosa laetevirens.
This is the original morph of the laetevirens and as you can see there is a difference in flesh content! From more flesh thickness comes more absorption onto more conversion of nutrients.



This photo compares the two side by side and as you can see the size of the racemosa flesh is much larger and to some degree hollow to allow more importation.


Just the stems to compare.


Taxifolia stem crushed.


Racemosa stem crushed.


The taxifolia form crushed.


The racemosa form crushed.


These photos show the thickness of the each caulerpa, firstly the racemosa.


The thickness of taxifolia.


A popular form of multi-celled algae called chaetomorpha.

It is shown in these two pics as firstly a single strand of this algae and secondly the content of it showing that it has quite a lot of content meaning it is a good importer due to its storage capacity of nutrients and subsequent rate if conversion of nutrients. It should be remembered that chaeto works best on nitrates once imported due to its extreme amount of cyano bacteria symbiotic with in.
Intact chaeto.


Crushed chaeto.