Water changing worries

[Macracantha]

I try to do tank maintenance when the missus is out - don't want her to see that I can operate the gravel hoover!

 

[gwlee7]

The only time I have ever been worried doing a water change is the one time that one of my ottos decided to stick its stupid sucker mouth to the inside of the gravel vac funnel. I thought he was gonna end up being sucked through and literally go down the drain.