Bristlenose will be fine as long has they have enough caves/hiding places i have 3 females and 2 males in a 2.5ft breeding tank with 10 caves/hiding places and dont have any problems with fighting and i also see them quite a lot through the day they are excellent Plecos and my personal Faviourite
I have the 72 hour heat packs. One's not enough this time of the year. But I'll be shipping some of my bigger ones out after the holidays. HN - you and your friend that inquired after he saw yours should put another order in and split the shipping! I've got some ligher colored ones in the bunch now!
Just let me know when you all thaw out a bit up there and I'll be the first in line! I love my lil guys, have room in a couple tanks, and have a brand new tank to boot!