Have a fairly new 29G. Cycled, water parameters staying good. We have 5 platies, 6 ghost shrimp, and 6 Serpae Tetras. One platy is pregnant and may have fry before we leave on Jan 14. We are going on an 8-day vacation and I'm not sure what to do. As far as water changes, I've been doing a 30% PWC once weekly, so I figure an extra day while we're gone won't hurt. Maybe do 40-50% instead before we leave? Feeding. I feed them twice a day and they do eat it all within a minute or two. This makes me wonder if I don't give them enough at one time. The ghost shrimp do a pretty good job cleaning up the fairly small amounts leftover. We have a catsitter who will feed fish as part of their work. My thought was to have her feed them only once a day, or even every other day, to keep the tank cleaner...but if they're used to twice a day, what should I do? I alternate between pellet food and dried bloodworms. Plus the platies nibble algae at times.