Fissidens Miroshaki10 1 inch fronds per order. Fissidens Miroshaki is a rare and highly sought after aquarium moss known for its fine, feather like fronds and compact, elegant growth pattern. This beautiful moss adds a soft, refined texture to aquascapes and is especially striking when attached to driftwood, stones, or other hardscape. Its delicate appearance makes it a favorite among aquascapers looking to create natural, high detail layouts.