Aquarium Supplies, LED Aquarium Lights, Marine Aquariums, Coral Reef Tanks, Orange County Aquarium Supplies

OCReef Secure Checkout
Your Cart
Your shopping cart is empty!

Products Categories

Seachem Onyx Substrate 15.4 lbs

Printer Friendly Tell a Friend 
Seachem Onyx Substrate 15.4 lbs
seachem ammonia alert
Price: $16.99
Code: OCASEA-3705


  • Seachem Onyx Substrate 15.4 lbs
  • It may be used in any aquarium environment
↓See detailed description below.↓
  Description   Reviews  

Onyx" is a specially fracted porous substrate for the aquarium. Onyx" is suitable for any marine or freshwater environments and is ideally suited for cichlid environments. Onyx" is most effective when used alone as an integral substrate bed, but it may be mixed with other gravels or sands. Onyx" is not chemically coated or treated but does have a slight buffering capacity.

Although pre-washed, it may be rinsed before

Aluminum 822
Barium 5
Calcium 197500
Cobalt 4
Chromium 10
Copper 4
Iron 2846
Potassium 417
Magnesium 115400
Manganese 43
Sodium 135
Nickel 7
Vanadium 8
Zinc 23

use to remove residual dust. Dust can also be minimized by filling aquarium slowly and dispersing water so that the Onyx" bed is not disturbed. Slight initial cloudiness is normal and will clear rapidly (212 hours). To shorten the cloudiness period use Clarity" in conjuction with mechanical filtration (such as filter floss). To determine the number of bags required for your aquarium, please note that each bag (7 kg, 15.4 lbs) occupies a volume of approximately 7,000 cm3 (425 cu. in.).

Verified and Secure Web Store

Online Aquarium Supply
Aquarium Supplies

Online Aquarium Supplies
Sign up↑ for Exclusive Offers
(Email is Private & Secure)

Free Shipping On Aquarium Supplies

Ecotech Marine Vortech and Radion
Follow OCReef Aquarium Supply on Twitter Twitter

Like OCReef Aquarium Supply on Facebook Facebook

Stumble Upon OCReef Aquarium SupplyStumbleUpon

CREE LED Aquarium Lights

OC Reef LED Lighting donated to build the Treasure Chest Tank at the Children's Hospital In Detroit Michigan. See it featured on Animal Planet's Hit TV Series Tanked!

We have chosen this profession because we love what we do! It's our pleasure to serve you!

Sincerely, OC Reef Staff!