I have a question about apple snail eggs/breeding. roughly how old do they need to be to start breeding? Can you roughly tell age by the size? I know that it depends on tank size, environment, etc., how big they would grow and how fast. And do the different colours ever breed? Would like to try this sometime, I have never had apple snails breed at home! I have also discovered the joy of nerite snails, am I destined to have an all snail tank????