Rodent Age > Weight chart for Feeders, Breeders & More

[cmsreptiles]

Just thought I’d share my own personal chart of how I categorize my feeder rodents based on age and weight to help more optimally choose the right feeders for my reptiles that eat rodents.

I’m hoping it can help people who are new to reptiles make the right choice to what they need to feed their reptiles appropriately, however this does not include the frequency of which your reptile needs to eat as this factor can vary between species. Please remember to do research on the needs of your animals specifically!
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MICE
• Day-Old Pinkies (Fresh Born - 24 hours) 0.5 - 1 grams

• Pinkies (1-2 days) 1-2 grams

• Lrg Pinkies (3-4 days) 2-3 grams

• Peach Fuzzies (5-6 days) 3-4 grams

• Fuzzies (7-9 days) 5-6 grams

• Sm Hoppers (10-11 days) 7-8 grams

• Hoppers (12-14 days) 8-9 grams

• Weaned (15-19 days) 10-11 grams

• Sm Mice (20-28 days) 12-16 grams

• Med Mice (1-3 months) -RTB- 17-28 grams

• Lrg Mice (3-6 months) -RTB- 29-40 grams

• Jumbo Mice (6+ months) -Retired at 1 year- 45+ grams
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ASFs
• Pinkies (0-5 days) 1-4 grams

• Pups (6-10 days) 5-8 grams

• Hoppers (11-19 days) 9-12 grams

• Weaned (20-35 days) 13-16 grams

• Small ASFs (1-2 months) 17-29 grams

• Med ASFs (3-5 months) -RTB- 30-49 grams

• Lrg ASFs (6-8 months) -RTB- 50-79 grams

• Jumbo ASFs (9+ months) -Retired at 1.5 years- 80+ grams
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RATS
• Pinky Rats (1-6 days) 5-12 grams

• Fuzzy Rats (7-13 days) 13-19 grams

• Rat Pups (2-3 weeks) 20-29 grams

• Weaned Rats (3-4 weeks) 30-44 grams

• Sm Rats (1-2 months) 45-84 grams

• Med Rats (3-4 months) -RTB- 85-174 grams

• Lrg Rats (4-6 months) -RTB- 175-274 grams

• XLRats (7-9 months) -RTB- 275-374 grams

• 2XL Rats (1-2 years) -Retired Breeder- 375-474 grams

• Jumbo Rats (2+ years) -Retired Breeder- 475+ grams

I hope this is able to help

Picture of sleeping pup rat for tax

[socraticmonologue]

I’m not sure how universalizable some of that is – I’m looking at mice, since that’s what I raise. I’ve not had a pinky less than a gram (just confirmed that with some fresh hot pinks that are 1.5g). And I have not had a mouse wean at 10 grams – even the standard bottom cutoff for weaners at 12 or 13 grams is questionable.

I wonder if your mice are just small. I know I’ve gotten some commercial mice that were fully haired (so, fuzzies) at about 3 grams – commercial rodents are sometimes scrawnier than they should be.

@cmsreptiles

MICE
• Day-Old Pinkies (Fresh Born - 24 hours) 0.5 - 1 grams

• Pinkies (1-2 days) 1-2 grams

• Lrg Pinkies (3-4 days) 2-3 grams

• Peach Fuzzies (5-6 days) 3-4 grams

• Fuzzies (7-9 days) 5-6 grams

• Sm Hoppers (10-11 days) 7-8 grams

• Hoppers (12-14 days) 8-9 grams

• Weaned (15-19 days) 10-11 grams

• Sm Mice (20-28 days) 12-16 grams

• Med Mice (1-3 months) -RTB- 17-28 grams

• Lrg Mice (3-6 months) -RTB- 29-40 grams

• Jumbo Mice (6+ months) -Retired at 1 year- 45+ grams

[cmsreptiles]

I’m basing this chart off of the rodents I produce as feeders so I understand that it is not universal. I do have smaller mice, but they produce massive litters with small babies. I also took into account of variations in individual animals.

The smallest pinkies I’ve weighed were lighter than a gram, however it is not often that they show up, my pinkies average at about 1-1.5 grams. I also have gigantic pinks that show up as well, but they come in smaller litters or from litters where not all of the offspring survive- so they have more opportunities to nurse.

Theres definitely a variability, the mice I breed came from different vendors at my local expo.

Its actually a plus to have tiny pinkies because some colubrids I hatch out are not able to eat regular pinkies because of the size.

[cmsreptiles]

Here are some Peach Fuzzies I produced a bit back.

Their weight was avg about 3-3.5 grams, 4 grams for the larger ones.

And here is a really tiny pinky one if my mommas produced in her first litter. They were definitely a runt to the rest of the litter. They survived though

Here is the avg size of my pinkies

My small Hoppers

The avg size of my female breeders (this one is preggo in the photo)

And one of my hoppers bordering on weanling at the time that I had spoken about in an older post.

[armiyana]

I’ve had some tiny little x-small pinkies from a couple of large litters. I think one of them were almost 18 pinkies. So smol.
A great majority of mine are in the 1.5 range

I keep telling myself to track weights and such when I’m freezing them off. But that’s a future me thing. I will one day.