I just see this online and it sure caught my attention.. I'm planning to buy the 28 inches one but my concern is: "will my air pump be enough to create a decent looking bubble curtain with its output of only 3L/min. I tried to ask the seller but it's been a week and there's still no answer yet that I decided to ask here in the forum hoping I'll somehow get better responses. Has anyone try such air stone? Any suggestions, helps, tips, etc.? Thanks..