Crawdaddy
Aquarium Advice Freak
Just try and relax. Remember to really vacuum your old substrate after you remove the decor. I was really shocked by the amount of waste in my gravel. The water that I left in the tank after pulling most of it out looked like swamp water. It was really nasty. I hooked up a bright light to try and see what I was doing, but it didn't help. I couldn't see the gravel I was scooping out. I would recommend that when get about half the water out, if it looks bad, swap water out bucket for bucket to try and dilute the waste, I didn't, because my OCD had me focused on just getting it done. I hadn't planned the "swap out" so I didn't think of it until I was filling the tank back up. It's done now, and I posted some pics on that thread. Try and have some fun tomorrow.