they are compatible with each other, mystery snails are not much of an algae eater so there is always enough for the nerites.You could add 2-4 Nerite snails to a 10 gallon, I'm not so sure I'd add the mystery snail as well since there'd probably end up being a shortage of food for the nerites. I'm not too sure about the compatibility of the 2 snails but maybe just add 1 or 2 Nerites and then your mystery snail later on, once you see your betta plays nice?
And no, Mystery snails are not asexual.
they are compatible with each other, mystery snails are not much of an algae eater so there is always enough for the nerites.
maybe, ive never had issues with food with the two together. but it is always good to feed snails more then just algae especially mystery snails. I normally have my lights on from 6am-6pm which is usually gives me enough algae for the nerites and I feed my mystery wafers every few days along with some veggies everydayThey still eat it though and that's enough to affect the nerites. Unless Emmy has a strong light or a long light cycle she should be careful not to add too many nerites.
maybe, ive never had issues with food with the two together. but it is always good to feed snails more then just algae especially mystery snails. I normally have my lights on from 6am-6pm which is usually gives me enough algae for the nerites and I feed my mystery wafers every few days along with some veggies everyday
every once in awhile they will eat the wafers but its usually only the mysteryYeah it is good to feed them a variety, though the issue lies in the fact that Nerites are pretty picky and don't really take to other sources of food. Are your Nerites munching on your wafers? You're pretty lucky if they are !