Thank you for your question. The minimum investment is 0.5 ETH.

Pet Lovers Can Access the Petchains Platform with Petcoin. Users can access the growing platform via using PTCS. Using PTCS as the unit of exchange, users can potentially exchange assets and advice among other active participants on the platform.
PTCS may be spent to obtain special discounts for the products on Petchains. PTCS may be spent to purchase various services on Petchains. PTCS is used as the medium of exchange when buying and selling items with the professionals. PTCS incentives will be distributed for donations to causes. PTCS holders would receive the alerts and notifications of the pet industry. PTCS may be spent to participate in online courses, as well as trainings relating to proper specifications about a product/ course. PTCS holders may receive free tickets and important discounts for Petchains events and sponsored events.