Is colored aquarium gravel safe?

A fish in blue colored artificial aquarium pebbles https://commons.wikimedia.org/wiki/File:2004-02-02_Pterygoplichthys_pardalis_on_blue_gravel.jpg

This is a great question that seemingly has not been addressed often online. I know because I looked it up when I started preparing this article. That in itself is strange given how often I’ve heard it asked before. It’s natural that people would be asking themselves this question. One begs to wonder why it’s … Read more