Spixi snails
Common name: Spixi  snail, zebra snail, zebra apple snail, spixi apple snail.
Scientific name: Asolene  spixi 
The  spixi snail is also known as the zebra apple snail and it easy to understand  why once you see it. This snail has got a smooth shell with a yellow or white  base color and dark brown to almost black spiral stripes on it, which gives it  a zebra pattern. The body of the snail can be yellow to brown with dark spots.  This species has fairly long tentacles in comparison to the body. The spixi snail move over flat  surfaces in a very special way that by many is described as “walking” since it  bends its foot to take ”steps”. The pixi snail is one of the most active apple  snail species.
The spixi snail originally  comes from south-eastern Brazil;  primarily from the area surrounding Rio Parana and Rio Grande do sul where they are found in  everything from ditches to lakes and ponds. There are reports of pixi snails  being found in other rivers as well. There are some yet unidentified snail  populations in Brazil  that might be Spixi snail populations or sub species of Asolene spixi.
Spixi snails do well in  most types of friendly aquarium setups with soft to medium hard water and a  pH-value that is acidic to neutral. Pixi snails are very active, but they are  also slower than most other apple snails.   It is important to keep the water temperature up when keeping this  species as they can get very inactive in colder water. This has to do with  their habit in the wild; the pixi snail will semi-bury itself in the bottom  during the winter and wait there until the water becomes warmer in the spring.  The pixi snail is a nocturnal species. 
The Pixie snail eats other  snails and will try to eat smaller snails such as Malaysian trumpet snails.  They often fail as the Malaysian trumpet snail can retract further into the  shell than the Spixi snail can reach. Some aquarists have tested using this  snail to combat other snails in aquariums. The success of such experiments  varies, but it seems like although pixi snails eat snails and snail eggs they  seldom make an impact on other snail populations in an aquarium. Perhaps a sufficiently  large population of Spixi snails can give a better result. 
Spixi snails are like most  other snails relatively easy to breed and the young snails grow fast. Older  snail grows quite slow. The eggs are laid beneath the surface, often among  plants and are embedded in a gelatinous mass. The eggs will usually hatch within  a month. Adult snails eat the eggs of other Spixi snails so it might be a good  idea to move the eggs if you want as many as possible of the off spring to  survive. The offspring will eat the same food as the adults. The young can  sometimes be cannibalistic against even smaller Spixi snails. 
Feed the snails a varied  diet containing both animal and vegetable matter. Sinking pellets for catfish  works well and like most apple snails the pixie snails love pasta and rice.
