hello guys, i have a question about putting more weight on top of the tank. right now i have a 180 gallon with a canopy, i am thinking about adding a refugium on top of the canopy. if i put 100 more pounds on top of the tank, what part of the setup will be stressed (tank, stand, or both?). i am worried about putting more weight if it stresses the tank, my stand and canopy are both very strong so i don't worry about them. tia