Glad to hear all is well. I had to laugh at Nut. Had a shrimp feast did she. LOL Yeah most times I put shrimp into a betta tank they ended up as a snack. I know you will do well with the way you now have everyone staged.
She did! A $30 shrimp feast! Or nearly.. LFS gave me a good price thankfully.
Then of course she's acting as though she's starving and should be fed right away!! As though I can't see that full belly and her mouth stuffed with shrimp just moments ago.
(I adore that Nut, absolutely adore her. She's the only fish that demands attention and even affection.)
Surprisingly she seems rather ok with the 2.5g, though she also spends ALL day swimming around, picking through the gravel. I'm still considering whether to move her to something like a 10, or back to the 45 eventually - especially since the Rams are gone. :\
At the moment, the only 2 potential Betta candidates for the 45 are Nut or Osiris, and Os seems alright in his 10g. Though I'd like to add another tall plant or two for him, he bebops around, through the plants and rocks, says hi to the shrimp, and keeps on. He's still the smallest of the Bettas for now.
Orion, and 'Hades' assuming he heals as I think/hope he will, are just too long finned for such a big tank.
I'm also unsure if I should just leave the 45 as is for a while, see what happens with the residents.
The only upgrade I'd consider for Ori is a long 10g, his fins are just too much for a large tank. And Hades.. well, if those fins come out as I suspect they will, he will have some long finnage to contend with too. Besides he's not getting moved much for a while anyhow.
(Osiris Before & "after" shots)