Have a question? It may have already been answered. Find answers to support questions often asked by picking a category from the drop down menu below.

Can't find an answer to your question here? Ask us a new one. One of the experts from our technical support staff will be happy to promptly respond. You can also call 888-SEACHEM if you would like to speak directly witho a technical support representative.

 
Onyx Gravel™ Support

Q: Hi, I was just curious what the difference is between the Onyx Sand and Gravel... is it just the size?
A: They are the exact same ore with the exact same mineral composition, the only difference is the size.

Q: I've placed onyx gravel mixed with flourite into my planted tank. I am aware that flourite does not release iron into the water column. Will onyx gravel release iron into the water column?
A: Onyx Gravel or any of our freshwater substrates will not release iron or any minerals into the water column to any significant degree.

 

 

Copyright © 2004 Seachem Laboratories, Inc. All rights reserved