Finish the box, ur BP has time lol I didn't feed my BP rats till he was 400g cause I watched his growth....the feeder should be larger then the thickest part of the mid-section of ur bp. That's how I honestly gauged it with the chart in mind. Use your discretion...my dumb ass fed my 620g a med rat three weeks ago and he hasn't fed since then....but it is as a lesson I learned. He's now in shed so it'll be a month before he feeds again









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