Originally Posted by RussellTheShihTzu
Some Betta seem to prefer smaller tanks....much to the dismay of humans who always think bigger is better.
Personally, if she is happy I would leave her right where she is. How large is the tank that you are concerned?
She's in the 2.5g hospital tank at the moment. It's where she's been for 2 weeks since the fin tear and my trip and then the flu..
I actually moved her back to the 45 briefly (the temp and parameters are all nearly identical), I let her float for a bit, dimmed the lights while she rested and then let her loose and she was off. Seemed ok checking everything out top to bottom and front to back, but then she was chasing fish she'd never cared about before, and then she just started pacing the back tank wall and her color faded incredibly. I finally got her attention away from the pacing but she didn't seem hungry and more agitated than anything. So... I put her back in the 2.5g after a while.
Really hate to juggle her through tanks but... She's had better color in the 2.5, she even spawned her own eggs for crying out loud. Yet she does swim about a lot in there which is why I thought something a bit larger would be ok and enjoyable. Now I'm thinking the 5g or 10g may be the best bet, the 10g I'm still setting up but there's nothing else in it yet, just rocks and plants and sand instead of gravel.. and some snail eggs. Perhaps a tank all her own is really what she needs. Though I'd like to get Orion in to the 10g or similar because he hates being stalked by my cat and the 5g is very open, even with the lid being see through.
Maybe a 5g would be good for Nut?
Edit: I have learned through many fish that bigger is not always better, regardless of their energy level or what have you, sometimes a cosy home is all they want/need. I attempted the 45 switch because she'd been in there before and I thought that would be an ideal return for her. I just got the sense that it would not be better overnight and didn't want to find her torn apart tomorrow or stressed or... whatever.