The pinks ramshorns and the rabbit snails get along great. They have their own tank since the rabbits eat plants. A snail only tank is much easier for snails to breed, pretty sure after watching this tank for 6 months that my bettas eat ramshorn snails. Some of my betta tanks have only a few ramshorns left, despite trying to breed them in all the tanks in the house.
It took my mini yellow rabbits over 9 months to breed, so happy with this little tiny rabbit snail. It's a little bigger than the gravel/sand in the tank at the moment. And Ernie the Orange Poso is well worth a tank by himself, he's the cutest snail we have.