Reef Rax

Grey Nano Rock Double Frag Rack

In stock

- +

Make your prized coral frags stand out with the Nano Rock Double Frag Rack on tanks up to 1/4" thick. Reef Rax Frag Racks mount to your aquariums glass or acrylic with their strong reef safe magnets that can be placed almost anywhere in your tank. 

Dimensions - 4" L x 2" W x 2.375" H

  • No curing required
  • Doesn't leach
  • Coated reef-safe magnets
  • Multiple colors and shapes


Traditional coral frag holders are designed for frag tanks and made of egg crate, and if you ever put one in your display tank, they are an instant eyesore. Reef Rax has produced custom molds that simulate real live rock structures and textures at a fraction of the weight. 

Reef Rax Frag Rocks are made of a highly porous resin structure that is almost buoyant when it is first placed in your tank. The neutral buoyancy greatly helps with its ability to hold heavy frag plugs and large frags of coral. Each rack includes reef safe magnets that can support the Nano Double Rock on tanks up to 1/4" thick.


Nano Rock Double Frag Rack

With pre-drilled spots for two frag plugs that can hold your prized frags. Using the double nano frag rack, you can isolate your coral from other potential dangers, and the magnetic mounting lets you move the coral to the perfect spot for lighting and flow. 


Grey Color

Reef Rax custom dark brown coloration resembles dry live rock and is the perfect addition to any new aquascape. Over time coralline algae will encrust the rack creating beautiful purple hues, matching the rest of your aquascape. The resin that is used to produce Reef Rax is colored all the way through and will not change color if it is chipped or cracked. If your current tank already has coralline encrusted rock, we suggest using the Purple Reef Rax.



Dimensions - 4" L x 2" W x 2.375" H

Frag Hole Size - 0.45" diameter

Number of Holes - 2

Max Tank Thickness - 1/4"


What's Included?

1x Reef Rax Nano Rock Double Frag Rack

1x Magnet Assemblies

More Information
SKU 211440
Write Your Own Review
You're reviewing:Grey Nano Rock Double Frag Rack
Your Rating
Only registered users can write reviews. Please or

Product Questions

Hello there,
Is this safe for a freshwater shrimp tank? I can not have any metals or rust within the tank.

Thank you
Question by: Denisse Quinones-Richters on Jan 4, 2022, 3:00 PM
This does not have any metals or rust on it. The magnets are coated and protected.
Answer by: Matt Lucero (BRS Staff) on Feb 7, 2022, 2:07 PM