I thought about it, when I first picked up Freddie, but decided against it because I don't have a heater or a hood for that tank yet, and the sponge filter I bought for it is currently running in the big tank so it can fill up with bacteria simultaneously to make cycling the 10 really fast and easy once I do get those pieces. It's really been no trouble for me to change the jar water daily (it's a little larger than half a gallon)...I fill a large bowl with tap water with a little Prime in it, let it sit out overnight to get to room temp, do a 50-60% water change every morning...I tested one morning before the change and nothing had built up at all, but I still do it every day as a preventative measure. Since the 10 gallon isn't cycled yet, I'd have to run tests and do larger water changes daily to keep Freddie's parameters okay during the cycle, and if it wasn't done cycling by the time I take off on the 25th my husband would be stuck with that chore and I really want him to have zero worries while I'm gone...also, with him working 12 hour shifts, if anything went wrong it would go unnoticed for a while. The 46 should be done cycling tomorrow or the day after and I could do a WC before leaving so the only chore would be daily feedings. Snails that I want anyway would add a little to the bio-load and I like Julie's suggestion of over-feeding, and after I get back from my trip I'll have plenty of time to finish setting up the QT for the neons. Also, all the cool plants and rocks and driftwood are in the 46 while the 10 is barren and I think Freddie would be more comfortable with that entertainment 