i use two bowls but like one of the other members my bigger one would eat the lot before the smaller one would get any ,,, iss is a mini lop and a good eater and fast, poppi my netherland dwarf is a slow eater and is still eating way after issi has finished so i have to monitor the last hour every morning, and i have to feed veg separately as well, although once issi has finished she will sit and wait and watch poppi till hes finshed now then shes there to finish off lol the choice is urs see how they go and monitor them,, at least with separate bowls u can see how much they get