I'm with Cichlidiot. Unless your neighbor is an experience fishkeeper, you're
better off leaving the tank unfed. I leave my tanks unfed for two weeks a
couple of times a year, and never have a problem. No losses -- the fish don't
even look any thinner when I get back. (Though the algae and snail populations
take a hit.) And I've kept angelfish in the past, and currently have clown
loaches and rainbows. It's entirely natural for fish to go a couple of weeks
without food. They will not starve. IME, they won't even lose any weight.

I wouldn't worry about PMDD, either. The plants may be a little pale when you
get back, but they'll recover very quickly. Some people turn off half the
lights over their tanks and turn off the CO2 while they're away, to slow down
the plant growth, but I don't bother. I leave lights and CO2 running. I just
got back from a two-week vacation this week, and the tanks were fine. Some of
the new Marsilea leaves had come in yellow instead of green (iron deficiency,
probably), but it was hardly noticeable.


Leigh

http://www.fortunecity.com/lavender/halloween/881/