Originally Posted by SmokeNLark
It's gravel then :) A 1 gallon is fine for now. My one betta likes his 1 gallon over anything else. He gets stressed in anything bigger, he's weird.
Every other day, I dump the water (after taking him and his fake plant out) and swish new water a few times until I can't see anything coming out. Then fill it back up, treat it and wait for it to be at room temperature. You don't need a siphon now, but I would recommend it for a bigger tank. Strainers are wonderful for rinsing out gravel. But if it's a temporary situation, I don't see a need to get one. The swishing will be good. :)
+1 to that. The swish and dump method is what I do for my small tank as well :)