i have read your other thread. i think it is possible to keep rams and bristlenose together, i have my two rams with a pleco and up side down catfish and havnt had ne problems. not sure about the long fined bristlesnose. i have never had any aggresion with my pair of rams, there was origionaly 2 males (one sold as a female) and a female in the same tank i didnt have any problems but moved one of the males ( the loner, as the other male n female was lookin pretty cosy) just incase. i also have bristlenose in with barbs, i dont know if this will help? the only fish that i ever had problems with bristlenose was my paradise fish, he started picking on my orange spot bristleys head, so he was out pretty quick.
Hope this helps and good luck.
Vamp.