Aquascaping & Waterflow

Thanks Tin. I've definitely got a lot of strange pieces of rock already. 4 yr old "base rock", a lot of Fiji, some Tonga, and some Marshall island (?). In my 37 it's stacked bottom to about 5 inches from the top, left to right, which is why I had to move some to find my late goby's remains. All this will go in my 90 with an additional 40-50 lbs that's curing right now. I like the look of the space around yours. I obviously have too much rock in the 37 or am crappy with the design or both.