90g Gems Ceramic Media

In stock
Out of stock

Discontinued by Bulk Reef Supply
- +

High-Performance Biofilter Media for Nano Tanks!

Inert and chemically stable, MarinePure Gems are a great addition to any aquarium that needs more biofiltration. Bacteria prefer to grow on surfaces, and by adding more surface area in your aquarium, you will give more space for beneficial bacteria to grow and proliferate which can help reduce nutrients and maintenance. The Gems can be placed anywhere under water, in the sump, back chambers of an All-In-One aquarium, inside overflows, or anyplace where a decent amount of flow around the Gems would be present. 


Average Gem Size - 18 mm - 20 mm


For Tanks up to 70 Gallons

  • Open porosity
  • 1,450 in2 of surface area per box
  • Lowers tank maintenance
  • Does not create a mini-cycle
  • Stable & inert
  • Can be placed almost anywhere


How to use:

Rinse the gems with saltwater or RODI water to remove any dust or loose particles. Place the gems in a canister filter, HOB filter, or any other high flow place throughout your tank. It is suggested to have them placed after mechanical filtration to keep debris and detritus from clogging the gems exterior pores. 


It can take a few weeks for results to be seen, but adding beneficial bacteria like Microbacter7 from Brightwell or Dr.Tims's One & Only can help speed up the process.


What's Included?

90g (3.2oz) MarinePure Gems

More Information
UPC 857246002196
Write Your Own Review
You're reviewing:90g Gems Ceramic Media
Your Rating
Only registered users can write reviews. Please or

Product Questions

When rinsing this product, are we talking the same way you would rinse rice but with ro/di water or can I just let them soak in a bowl before putting them in my tank (WaterBox)
Question by: Ahmad on Apr 12, 2022, 10:54 AM
Thanks for the question! When you rinse them, we recommend under running water to carry the dust away rather than soaking. Let us know if we can help with anything else!
Answer by: Kyle Thomas (BRS Staff) on Apr 13, 2022, 9:21 AM
in which part of a intank custom caddy can I put the Gems ceramic media and a chemi pure blue?
Question by: Manuel Amalbert on Jan 6, 2019, 6:07 PM
Thank you for contacting Bulk Reef Supply! That is a great question. The fun with the Custom Caddy is you can choose which compartments to put your media of choice in. Any layer will work with either of those products as long as water flow is directed through the caddy. I personally put the gems in a lower flow area. I am also a fan of the Chemi Pure line and put them on the top layer under a piece of pre filter. I hope this was helpful!
Answer by: Ashley on Jan 7, 2019, 11:41 AM
Will the contents of the bag fit into the second (skimmer) chamber of a IM lagoon 25? How much space would the entire contents of this bag take up?
Question by: John Kaplan on Aug 30, 2018, 10:32 AM
Great question,
The contents of these bags measure out at approximately 5" x 3" x 2.25" so it will fit in the skimmer chamber of your IM lagoon.
Happy reefing!
Answer by: Brad Ohmann on Aug 31, 2018, 11:25 AM