I just started reading your books (digital edition) and bought some online lessons that i felt uncleared to me after taking some of online fengshui classes with other fengshui masters.. im very fascinaated with your approach because even on level 1, explainations are quite clear and simple.. now its clear to me the differnce between pop and classical fengshui.

 I just have one concern for now, in your book YOUR AQUARIUM HERE you said that the top of the aquarium should be open and visible for CHI to collect. using large aquariums with size such as 4feetx3feetx1.5feet its difficult to have an open top since we have to install the overhead filter to keep the water clean and also the overhead lights.. putting these items will close the top.. please expound on this.. thanks.. rina

If you close the water, the effects for water would be nominal. Think about it this way - you buy a bottle of mineral water. And you did not open it. You place it next to your bed. Did it activate any Flying Star? Surely not. It's just bottled water. Same with a closed lid aquarium. It's just a box of water. Closed up. It will not help to activate/circulate Qi. 

Cheers,

JY