Air Pump and Air Stone Upgrade

I upgraded my air pump today to better aerate my tank for my nice pets. Went to C328 and ask him for the most expensive air stone i could buy. The boss was kind enough to go all the way to his store and bring me a nice box. when i open it, it was like opening a box of chocolate. inside was 16 really blue and nice looking air stone professionally packed. i was expecting to pay around $25 for each. Ha, it was only 4 dollars each! seems no manufacturer bother to make some good quality ones out there or am i in the wrong place. By the way, they are from Tetra. so i bought 4.

Recently i was snooping aorund the net and i can resist shopping online and bought myself this nice looking but reasonable priced Hailea Acco 2208 air pump. the spec says it si a massive 30L/min of air output. most air pump you buy off the shelf is 2-5L min. If Eheim make something as powerful, i will gladly buy one but sadly Eheim is somewhat selling to people with 4 ft tank max. with their design and capabilities maxing out at this level. So to cut the story short, i hooked this massive air pump and i am using valve regulator to run only 1/3 power. It is a powerful pump i must say and the low noise is rock solid. hardly a breather! sizewise, it is bulky!