TW 2400 Thalassiosira weissflogii
12% dry weight Frozen formula. Thalassiosira weissflogi is a large diatom (6-20µm x 8-15µm) that is used in the shrimp and shellfish larviculture industry.
I got the larger size and frozen because they were out of the smaller thawed size, but, my Hyalella azteca love it, so I love it! My azteca are now flourishing!