yes, i would've loved to find some buddies when my tank was thriving. it got a little out of hand when i relocated 7 times within the year lol. but we should all have a get together monthly once everyone knows one another. we could trade plants and shrimps ect.
i had a betta with my shrimps and let me tell you now, he will harrass the shrimp to no end. especially during feeding time. after placing my betta into the tank, the shrimp went into hiding most of the time. i had a colony of about 150+ in my 20 gal and i saw around 20 out in the open. i would suggest finding a small home for your betta =).