Betta Fish Tank Setup Ideas?

Hi,
as the title implies, I am looking for new ideas on tank ideas for my betta,Thief. And I know my fish's name is probably weird but there's a story behind that lol. Anyways right now she is in a 10 gallon tank with heater and filter and a plant and a small hide which very soon I am getting a different hide soon. For the upgrade, I want to get something that's more longer than taller, like the kind of tanks they would put arrowwanas in since they like more floor space rather than depth. And if I was to get this upgrade I would certainly want other fish in there but I know bettas won't get along with all fish so any ideas on that too? Right now she's with two amano shrimp.
(P.S. the reason the rocks were so bright was because I had the light on in the picture but they are a bit darker when the light is off because I know bettas can be irritated by bright colors and I only have the light on for a couple minutes each day for feeding time mostly)

 

I have bettas in a 75 gallon with glowlight tetras and emerald cories. Its been up and running a little over 2 years with no problems.

 

It depends on Thief's personality if he'll get along well with other occupants. I have a 50 gallon long with platies, cardinals and otocinclus and besides some showboating from time to time, SushI mainly ignores everyone else.
It helps if your tank is heavily planted so that everyone has an easy time hiding.

 

If you want some inspiration, I'm loving my tank right now;

 

If you want some inspiration, I'm loving my tank right now;
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I do too, if I do the upgrade I do want a more natural sort of setup. Thanks for the pics, nice tank !

 

I do too, if I do the upgrade I do want a more natural sort of setup. Thanks for the pics, nice tank !

Tall driftwood is a favorite of betta fish, as it can give a nice place to rest by the surface when they are tired. Also, cholla wood looks nice and gives a wonderful hiding place. Best of luck! Post pics if you decide to upgrade.

 

Tall driftwood is a favorite of betta fish, as it can give a nice place to rest by the surface when they are tired. Also, cholla wood looks nice and gives a wonderful hiding place. Best of luck! Post pics if you decide to upgrade.

Will do