Ceramium secundatum is a small marine red alga.

[1] It appears as tufts of erect axes to 14 cm long, densely branched attached by multicellular rhizoids.

The main axes has strongly in-rolled apices.

[2][3] Found epiphytic on other algae and on artificial material in the sublittoral to 11m deep.

[2] Common in the littoral,[4] and epiphytic on other algae and artificial material.