Freshwater snails do not need a filter, but they prefer it. The more water movement, the cleaner they/their shell stays. I have 3 mystery snails in a 10 gallon and 2.5 gallon tank with a filter and they're doing very well, but I also have 5 baby mystery snails in an ice cream pail until they fully mature. They're doing well, too.
can snails live with male betta fish without a filter
As a general rule YES!
No, a filter should do.
Most do just fine without, because they breath from the surface.
snails are mostly scavenger's. Some species of snails are predatory; eating other snails and invertebrates.
snails do need other snails around them to be happy because they have remarkable senses and brains.
Snails are nocturnal, so are more active in the dark, but do not need to be in the dark.
water
yes
no
what are you doing with lettuce and snails? and no they will be fine
snails need calcium because they use it to repair and grow there shell. common foods are cucumber or lettuce that have calcium
When adult snails lay their eggs on a nice young green leafy plants the baby snails have got plenty of food to prepare them for the life ahead of them, do they need their Mum..No
Ya