Lays jelly egg masses on plants and aquarium glass; young hatch after about 2 weeks (some reports up to 2 months). Self-fertilisation is possible but gives few hatchlings.
Any two.
Any tank.
Warm water and food.
Egg masses of about 12-49 eggs (up to 60 reported); hatch after 14-16 days, or 31-65 days in one old aquarium study.
Young snails graze.
One breeding tank for the great ramshorn snail, drawn to scale from the breeding guide.
Water: Unknown
A plan from the breeding guide and an adult size of 3.5 cm. Tank shape is a standard 2 : 1 : 1.2 box, at least 6 adult lengths long. Check each step in the guide above.
A rack of breeding and grow-out tanks.
The breeding guide gives no tank size for the great ramshorn snail yet, so a business layout can't be drawn.
Hermaphrodite: each snail has both sexes, and self-fertilisation is possible, so there are no males or females to tell apart.
Typical for snails
Clutches appear on glass, plants or above the waterline.
Baby snails hatch in about 2–4 weeks. Too many? Feed less.
A general guide for this breeding type. Days change with temperature and species.
Clutches appear on glass, plants or above the waterline.
Set up a virtual breeding tank and see what would likely happen.
An educational estimate from the breeding rules, not a promise.