Thanks all. Unfortunately tank is 16in tall so im somewhat limited but i think you're right and different heights would be nice, ill mess with it.
Great article, make perfect sense. Unfortunately part of the reason for new is a bad hair algae problem so not sure i can put it in, maybe in the new basement sump. Hopefully the new filtration will not allow is to grow like before cuz i would love to put that rock in the sump for the bacteria.
Definitely agree with being able to remove rocks, that has saved me numerous times. Bit of a gamble on the big one but tried to keep that in mind cuz i definitely pulled a lot of rock out more than once. I think i will arrange so that's a bit easier.
Really good advice all around, definitely what i was hoping for. Thank you, keep it coming.