My rats seem to go through their food very fast. I put in enough for a week, and they eat it all within two days. Recently, my gf has told me to just put a little bit in their bowl each morning and possibly some more in the afternoon. They also drink a lot at nights as well (The bigger one tends to push away the smaller one to go first) It makes a lot of noise when they drink, so I have also been removing their bottles at night so that me and my gf can get some proper sleep. I was just wondering if it's good to limit their food since they have become really heavy.