, no such thing as too much rock, unless your fish have no room to swim. just wash it very well, and scrub it. hirocks is very dirty/dusty
you should keep your LR
wet to avoid any dieoff. maybe sumberge a small bucket, put the rock in there and pull it out wet. be careful not to drop any rocks and break the bottom of your tank!
54g all-glass bowfront corner planted FW
Red tiger lilly, Rotala Indica, Sagittaria Subulata, Micro Sword, Cardinal Plant
Fluorite Black sand and gravel