Yeah, I did read about that, but honestly for going both ways that would get really expensive. Almost like having to transport another person. I guess I'll probably just have to do without. I wouldn't want to cause the poor thing undue stress because of my situation.
Hmm... all I can think of is to get a somewhat larger tank (maybe a 5-10 gal hex), do a water change right before you leave, and use the vacation aquarium blocks which contain slow-release food and chemicals that help the water quality. I've used those before when I went away for a week.
OK, this is gonna sound odd, but is there any chance you could leave your fish with someone who's going to be staying? Maybe offer to pay then a little something?
Or, even crazier, have you thought of a pet sitter? Maybe you could post something on Craigslist to see if anyone woul dbe interested for a modest fee? (You could offer to pay 1/2 up front and 1/2 when you pick him up *alive*.)
I have a Marineland Crescent, that I bought from Petsmart for pretty cheap. It is a 3 gallon, so I don't use a filter, although it does come with the bio-wheel filter. It has a nice light, also! Look into it, you might like it's size.
Well, when I moved cross country we brought my old better fish on the plane in a glass mason jar. Then again that was before the hole " not allowed liquids on planes" thing. The flight attendants kept asking if he was alright and he stayed in the jar for a month until his bowl got shipped with the rest of our stuff. It is optimal , of course but it wasnt long term. ( we didnt kno anything about betta's back then so we didnt heat his bowl..)
Alternatively, I could get a bigger kritter keeper and get a filter for it.
The tank - is exactly what I bought a few days ago. It would work. Here's a thread I started asking people here what their impressions of this model are.
The kritter keeper: If you're not planning on moving the fish with you when you travel, you could get it - or you may as well get either a glass aquarium of similar size or a tank setup like the one above. Plain glass aquaria can be quite reasonably priced, then you just choose a filter, hood etc.