Acanthocereus Tetragonus Monstrose 'Fairy Castle Cactus' 3.25" Stayin' Alive Succulents Ants and plants = the best of roommates! This Hydnophytum Formicarum aka ant plant is not only fun to look at but is a great house for our ant friends. I purchased this one at a recent tropical plant Dracaena deremensis Variegated Corn Plant Lemon Lime Fragans 2 inch Set of 3, Tiny Mini Pixie Plant Walmart.com Have a cat (and dog), was told this was probably a Bird's Nest fern which should be safe.. : r whatsthisplant Mold on Houseplant Soil: How to Prevent and Get Rid of It?