What is the sonic difference between brilliant pebbles and matte ones? Is the sound with matte type a bit dull?
"Get a humidifier and a powerful AC.."Not a good idea. Air conditioner would dry it out in the end but would need to work harder than usual and you know it would wreak havoc on your electrical circuit. You would need glow-in-the-dark rocks to manage that issue although some say that glow-in-the-dark Crocs would work well, too, and at significantly lower price.