Mini Pellia (Riccardia chamedryfolia) is a tiny liverwort prized in the aquarium hobby for its exquisitely fine-textured, multi-branched thallus. Unlike the broad, flat lobes of Monosolenium tenerum, Riccardia chamedryfolia grows as densely forked, finger-like branches just a few millimeters wide, forming compact, deep-green cushions with a mossy but uniquely structural appearance. Native to Asia, it has become a staple in nano aquariums, Taiwan-style shrimp tanks, and high-clarity planted setups. Its minute scale makes it particularly effective for creating proportionally correct scale illusions in miniature landscapes. Mini Pellia grows more slowly than most mosses and requires reasonably stable, clean water to thrive. CO2 supplementation and adequate micronutrient availability significantly improve both growth rate and the density of branching. Without CO2, growth is very slow and the plant may become sparse under suboptimal conditions. It attaches to surfaces more readily than standard Pellia, making it easier to secure to small rocks, twigs, and mesh. Shrimp, especially dwarf Neocaridina and Caridina species, are extremely fond of grazing the biofilm that accumulates in its micro-textured lobes, making it a functional and aesthetic addition to shrimp-focused tanks. Algae, particularly hair algae, can become a persistent issue if light is too strong or nutrients are unbalanced.
