Shane l
Aquarium Advice FINatic
I have a 5500 air pump that I bought for my 3 gallon tank last year and it worked really well. But then I tried to put it in my new 8 gallon tank and it didn't make one bubble so I opened it up and found a metal rod with a weight attached witch vibrated against a rubber drum to make bubbles(picture1) so I applied some force to the rod with my finger and it miraculously made more bubbles so I went and found an old soft rubber toy and cut it to length(picture2) and stuffed it in and it worked (picture3) so I closed it up and presto (picture3)