Ramshorn snails are hardy and will thrive and multiply without attention in a freshwater aquarium (assuming the absence of snail eating fish!). They are excellent scavengers, eating algae, left over fish foods, etc. Usually they do minimal damage to plants.
To grow the finest specimens, the snails should be given plenty of room, warmth and food. Water should be slightly alkaline. Temperature is best at 75 to 80 F. Preferred foods include spinach, lettuce, hair algae, shrimp based fish foods and carrot.
Siphon off the bottom of the culture tank frequently and replace with aged freshwater. The flat amber egg masses will hatch within 12 to 40 days depending on temperature.
These reproduce by means of the familiar flattened, dense jelly-like egg masses spotted freely on any potentially algae-growing area. These egg masses are clear to light amber in colour, with the dark eggs or embryos showing clearly. I have never found a fish that will eat or disturb the egg mass, but there may be such around. Any snail-eating fish will devour the adult form of these beasts.