I released mine (after QTing them of course) in 5-10 minute-spaced increments, releasing the weaker/more skiddish/docile of them first. The healthiest, most aggro ones went last. Mine had very little fighting and they get along very well now. It's rare I even see a torn fin at all, and usually it looks like it may have come from decor perhaps, maybe their driftwood? It doesn't look like nips. I never see them flare anymore, no more chasing, they don't have feeding-time aggro. Mine has been set up since mid March. I'd say we had maybe 2 weeks of mild "pecking order" squabbles, mostly flaring and chasing, occasionally a nipped fin.
ETA2_ I floated mine for 1 hour before starting the release process.
ETA- As far as hides, I know it's more expensive, but I bought hollow drifwood pieces off Etsy and it's been great! Also, I positioned my plants to make obstacle-course type layouts and looped my amazon sword runners in such a way as to create little bridges and tunnels.
My bettas: D'Argo + the girls Jullanar, Lalla, Razz, Rayleigh, Aviendha, Arya, & Lovelylocks
plus the other guys Toni, Eli, and Clinton (platy, guppy, and molly) a kuhli- Burt, 2 yoyos- Duncan and Ma, and otos, Laurel, Hardy, Larry, Curly, and Moe, plus the kitty, Clara the Impossible Girl.
SIP: Turk (teal VT), Azul (royal blue VT), Jerrica Benton (pink cambo CT), Lady Amalthea (blue cambo CT), and Jadzia Dax (blue VT)
Last edited by osromatra; 04-28-2013 at 04:01 PM.