I'm setting up a tank for a couple clowns this weekend and a friend wants me to use this tank to QT a tang for him. The QT we usually use is a 10g and the tank I'm setting up is a 20g and he thinks it would be better for the tang. I agree but I plan on using live rock and sand in the clown tank should I QT the tang in it before I put the rock and sand in it or will it matter or is the 10g okay to QT a tang in? Thanks