Do you leave them in the container when you plant (put in water) and do you cut out bottom of container so the roots have somewhere to go? Where would you put brick?

1 1/4 acre L shaped pond, 6 to 9 ft deep. Finished 7/7/16. Stocked with LMB, HBG, BG, CNBG, RES, FHM. Can't wait to fish it. GO SAINTS!!!