I have 5 aquariums ranging from 50 gallons to 85 gallons so I guess I qualify. I buy my supplies from a subdivision at the corner of Mindanao Ave and Congressional Ave. I forgot the name but it has one of the widest collection of fishes and supplies I've seen so far and its cheaper than others. When you enter the subdivision gate go right on the first corner then right again.
Di ka magsisisi pre.
Try going to Cartimar.
its along taft, a bit near DLSU.. hehehe
not 100,000,000 percent sure but im sure its Gil Puyat if im not mistaken :P