This is a Terrarium/House Plant so it is not aquatic and cannot be put underwater in your aquarium. 

1 Purple Waffle Hemigraphis Alternata plant bundle 

Size ranges from: 3-8 inches

Purple waffle care info

• Care: Easy 
• Growth rate: Medium
• Placement: Foreground/Midground
• Lighting requirements: Low/medium light easy
• Color: purple & green 
• size: 6+ inches 
• propagation: clipping stems and replanting

An easy to grow, low maintenance plant that adds a colorful accent to any terrarium, home, room, or office. These plants grow best in medium light. Most commonly used as landscape plants in terrariums or in the back of aquarium filters as well as small office desk plants. They are a beautiful purple color and ruffled leaves that look like waffles.