I'm wondering if I should try to move my betta from its 2 gallons tank to my 160 gallons planted tank. It's a community tank with rummy noses, cardinals, fully-grown pearl gouramis, SAE's, amano shrimps, boeseman rainbows, some corys and CAEs.
Yea, if you're looking for more room for your betta to show his/her personality (and have more 'toys'), you could go with something like a 5 gallon hex or the eclipse 3 - both are nice kits with small space requirements.. a 10 gallon is fun if you have the room. you'll find your betta may develop a habit of swimming 'laps' from one side to the other. LOL
Have you posted pics of your tank in the photos forum? If not, I bet a lot of members would love to see pics of your Betta and of your big tank, sounds like a lot of beautiful fish.