I had 8 caterpillars. I didn’t have a lot of milkweed in pots. There is a lot of Common Milkweed (native to where I am) growing in our yard. They don’t like being transplanted to pots.These floral tubes with stand are perfect. The leaves stayed healthy and delicious for caterpillar munching. Easy to clean the frass (green poop-looks like great ferilizer but they recommend just throwing it away). I’m probably going to buy another one. :)I bought two of these. I have 20 caterpillars coming from MonarchWatch.org. ONLY BUY CATERPILLARS FROM THE MOST TRUSTED SOURCE!! Sorry Amazon, your vendors are not it. Last year we saw so few Monarchs. Most of of the milkweed went untouched. We also have a lot of caterpillar predatory wasps. So! This year I have a large 35 x 35 x 59 Inches habitat bought here from RestCloud. Good product, a bit big. I could have gone smaller, 36″ or 48″ high would have been fine.Yes, I recommend this product.