Here is my new tank, as you can see from red arrow my filter intake is right above the gravel line. I want to change the look of the tank by using black sand. Is this possible or will it all be drawn into the pump? And now that I think of it when you guys mention sand are we talking regular small granuale stuff? Do I need to by my sand/rock a little larger than the screen on the intake?
Please bear with me, I'm new.

Please bear with me, I'm new.

