This plant is sourced from Tropica Aquarium plants. 

Description from Tropica Aquarium Plants:

Leptodictyum riparium is a slender, upright moss that tolerates both high and low temperatures. Leptodictyum riparium is often called "stringy moss" and is found throughout most of the world, but is thought to have originated in Europe. It has an intense, slightly transparent green colour. An undemanding and easy moss that can adhere to rocks and tree roots in the aquarium. Growth is both vigorous and rapid, so regular trimming is required.
A generally good plant for beginners who want a unique effect in the aquarium. The moss is popular in nano aquariums, and often used as brood care and cover.

INSTRUCTION:

• Type: Moss
• Origin: Cosmopolitan
• Growth Rate:  Medium
• Height: 3-10+ cm
• Light Demand: Low
• CO2: Low

Attention! Please read the following important notes before ordering any live plants:

For all customers outside of California, please do not order plants via UPS Ground shipping or USPS first class mail, there is a very high chance they will not make it alive.  No live arrival guarantee for USPS first class, UPS ground, and FedEx ground.  USPS priority mail is guaranteed with a 50% refund/credit.  Although USPS priority mail is the most popular and ships fine in most cases, occasionally it could get mishandled or delayed, so please order at your own risk.

*Please refer to the link here for more details of our Live plants guarantee policy before you make the purchase.

Due to the fact that live plants are highly perishable, we strongly recommend the purchase of a thermal bag and cold pack set ($5 each) with each plant order value under $50 (not including shipping).

We will include the thermal bag and cold pack set for FREE if each plant order exceeds $50 (Free shipping over $50).