For aquariums up to 300 gallons. Includes 36"L x 8"W x 8"H acrylic Reefugium Box, 20 pounds Miracle Mud, (2) 13 watt PC light, pump and plumbing. Features:

• A continuous releasing of nutrients/minerals and trace elements into your aquarium
• A Refugium in which a diverse mix of organisms can grow and reproduce
• An ideal “Nursery” area for fish fries
• A controlled growing area for micro algae which can reduce nuisance “hair” algae grown in the main aquarium