Bryopsis macropopulus
Extinct (December 28th, 2018): B. macropopulus has been eaten to extinction by N. tigerensis, resulting in N. tigerensis going extinct, as well as Multis parva.
A species of hair algae native to specifically slower moving cooler waters such as zones 15, but they’re not picky, and if they have ammonia or nitrite from waste, they will flourish. Preyed in by L. Diminutus and M. Parva. Usually found on or around C.