make for damn sure you dont feed them in the same cage. they will fight over food and you and them will get cut to pieces. if they are truelly only 4ft long go to bed bath and beyond and buy some iras cb110. they are pleanty big enaugh for each to live in. just get another under the tank heater and place the heaters on one end of the cages.

your boas will be more happy and healthy if you split them up and use these containers. hell you could sell that 80 gallon tank that they are in and make enaugh to build your own rack.

dont get flusterd with them being so aggressive during feeding time. i know it kind of sux, but it is also proof that your snakes are healthy. i love a snake with a monster feeding responsce.

you need to swich them over to rats. 4 mice is a joke for a 4 ft boa. feed them each one med rat every other week. they will not get much bigger than they are right now but if you want them to get bigger start feeding a large every other week.

please dont just take this advice and wait to do it. start right now. before it is to late.

keep us posted. best of luck and happiness with your new boas.

matt
pm me any time if you need help. or suggestions.