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Monarch ER- 8" by 8" cage for nursing sick caterpillars and problem chrysalises
a small cage for birthing butterflies and nursing sick caterpillars.

Monarch ER Butterfly Cage- mini monarch hospital 8"x8"x8"

Regular price Sale price
$8.99   $7.99

Unit price per

MonarchEmergency Room for birthing butterflies and nursing sick caterpillars!

  • For Indoor Use or Outdoor Area protected from wind/rain/predators
  • Drawbridge Door-flap hangs down and won't get in your way when cage cleaningor inserting/removing monarch caterpillars, chrysalides or butterflies
  • 8" x 8" cube is our mini monarch hospital for fallen chrysalidesor sick caterpillars that need to be separated to prevent spreading disease
  • Fine mesh keeps baby in and small predators out
  • Handles for easy portability
  • NOPVC Window allows butterflies emerging from chrysalides to easily climb up cage to dry their wings
  • GreenCage folds flat for easy storage.
  • Check out our Instructions Page for additional cage and accessories info
  • All Butterfly Cage/Kit customers receive an invite to our Closed Facebook Groupto discuss raising monarchs + post your photos
  • Save 15% when you bundle a cage with the How to Raise Monarchs Downloadable Guide (this guide also contains info on finding eggs or purchasing them from vendors, if needed)

Customer Reviews

Based on 61 reviews
Nice size

These will be perfect for days when I have to release a butter while I am at work because the mornings are a bit too cold. No more driving back home to release them into the sunshine.

ER mini cage

Perfect size for my eggs and newbies when at the camper

8x8x8 Mini habitat

I am currently using this habitat to allow a damaged monarch (eclosure mishap) to live in. I have it in the sun next to my bigger habitats. It has been hanging out sipping sugar water living almost 30 days so far. Not just an ER but a Tiny Safe House too. Well made. Easy to clean and store.
I love it !

Great Service, Price and Product

Very happy with these cages been needing them for a long time and they are the perfect size for individual cats or for a few newborns.

Time Out Space

I really like the ER Cube cages for all of the reasons stated in the product ad, but my favorite use is as a Time Out Corner (space) for mischievous instar 5 fatties. While searching for the perfect place to pupate, some of these cuties will poke, prod,and generally harass other cats. When one cat will NOT be redirected to a different area of the cage ceiling I remove it to an ER Cage. Ive learned that 2 out of 5 (in my experience) will choose the zipper to make its silk button even though it means hanging sideways. Now I put the zipper side down! That eliminates the very awkward situation of a chrysalis on the zippera short zipper in a small space! Its more difficult to move a chrysalis like that than in a regular cage.

We don't use the small cage for wandering 5th star cats, but door down sounds like a good idea for this size cage with no accessories! Thanks for sharing...

Customer Reviews

Let customers speak for us

1979 reviews
Great enclosure

Thank you for this excellent enclosure that is a little smaller than my others.

Wonderful products

Thank you so much for your enclosures and poo poo platters! Theyre all good quality and just what I need to care for my butterfly caterpillars.

Nice size

These will be perfect for days when I have to release a butter while I am at work because the mornings are a bit too cold. No more driving back home to release them into the sunshine.

Good quality & gets the job done.