I used to be gone for work for long periods. I "invested" in a broadcast quality web cam. Mine is an Axis V5915 with full PTZ, auto white balance, and a 20x optical zoom. I used it to enjoy my tank while I was away from home.
With it's built in web-server I put it on the web to share my tank with anyone interested. You can check it out at
o2manyfish.com --- Tank lights aren't on till 4pm PST.
It's neat to check the camera logs and see people logging in from around the world. We avg about 100 people a day and that number doubles on the weekends. If I do a good youtube update on the tank then the daily views can hit 1000.
I then took the web-cams feed and integrated it into our security camera system. In our theater, living room, kitchen, master bedroom we have 32" monitors showing the security cameras, and one of those feeds is the reef tank.
Now that I am retired and don't travel for work anymore I get to enjoy my tank from more rooms in the house than just the room the tank is viewable.
For when things go wrong, the PTZ has been invaluable. We were on an Alaskan cruise when there was an 8hr power outage. Fish loss was over 100 fish. Using the camera we were able to guide the house sitter to a majority of the bodies to remove them from the tank.
In addition to the Axis camera on the main 750g tank, I have 5 standard 4mp security cameras on the outdoor frag tanks and the outdoor filter wall so I can keep track of everything, whether at home or away.
The Axis is probably outside of most people's budgets for a webcam, but it's an amazing camera and for me has been well worth the investment.
Dave B