Thanks for all the comments. Personally, I'm not planning on any large trip for the next couple of years, and I am sure I could have someone check in briefly if I need to go somewhere for a few days.
However, thinking about that, there is less room for error with a smaller tank than there is for a larger tank.
Pinhead - much appreciated to have some comments from a fellow colleague. If you have any ideas on lesson plans to go along with a saltwater setup, that would be most appreciated as well.
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