On ebay they have a 36" or 48" flexible bubblewand for 8.95. that would be perfect. Just coil that bitch up evenly in your container and it will create great bubbles when supplied with good air flow. Search "marineland flexible Bubble Wand". You should also be able to find them at your local petco or petsmart. Most that I have seen are only like 12 inches long which would be fine as well. Just get 2. Peace