Opinions on substrate change process!!

wait im a little confused are going going o do a big waterchange??????? sorry just misunderstood(sp) it

 

nope i just used a big tubed hose and siphoned out a good amount of gravel haha it scared the sh!y outa me when one of my bigger rocks move haha made me rethink where i was going to siphon the gravel from lol.....at least i know one thing for sure when i put the sand in the tank im going to make sure the rocks are STABLE on the bottom and not resting on the sand

now im thinkin after i do that a few times im going to have to remove everything from the tank just so my rock dont come tumbling down;D;D