The LUNA NANO 4-Gallon Frag System is a compact, purpose-built solution for coral frag grow-out, quarantine, or display in a small footprint. Designed for reef hobbyists who want a clean, organized frag setup, this nano system provides a dedicated space for coral frags without the complexity of a full-size frag tank.

Constructed from durable acrylic and designed with simplicity in mind, the LUNA NANO is ideal for benchtops, counters, or tight spaces where a traditional frag tank won’t fit. Its minimalist design keeps the focus on your corals while offering an easy-to-maintain platform for propagation and observation.

Trusted by reef hobbyists nationwide, Luna Reef frag systems are used at reef shows and swaps across the U.S. for a reason — they’re reliable, functional, and built to perform.

Frag nano tanks are also ideal for hobbyists looking to frag colonies for sale or trade, and they double as quick-setup acclimation tanks for corals and other small livestock.

Bundle & Save:
Use the configuration option to receive 10% off locking frag racks when bundled with your frag tank. The tank-with-racks option includes two FR-10 locking frag racks, holding up to 70 plugs total.

• High quality domestic cell cast acrylic
• Compact 4-gallon nano frag system for coral grow-out or display
• Optimal rear chamber design for filtration and flow
• Black back and bottom to reduce algae and keep focus on corals
• Fully rounded and polished corners
• Pump and plumbing included
• Made in the USA
• Full warranty

QUICK SPECS

• Dimensions: 11.75" x 15.75" x 5"
• Total volume: 3.92 gallons
• Functioning volume: 2.74
• Rear chamber 1: 3" x 3.75"
• Rear chamber 2: 4.75" x 3.75"
• Return chamber: 3" x 3.75"