3 or 4 would probably be O.K. in there. I don't like to push the numbers toward crowding at all. If you're using Saran Wrap over a screen, you might find that to keep up the proper humidity, you will need to cover the entire top for most of the time, with just a small
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Patty
Pahsimeroi, Idaho

D. auratus blue, auratus Ancon Hill, galactonotus orange, galactonotus yellow, fantasticus, reticulatus, imitator, castaneoticus, azureus, pumilio Bastimentos. P. lugubris, vittatus, terribilis mint green, terribilis orange.