BioCube 29 pet peeve

[crystalz]

I owned one of these tanks quite recently (same problem) and retro-fitted it with a coralife super skimmer 65. In order to fit the skimmer I had to cut out the back of my lid in a few spots. By doing this it seemed I allowed just enough air into the canopy to prevent the condensation issue. It was a fluke fix but it did the trick.