I have some Ramshorns that I want to start selling, but want to make sure that I don't get rid of too many. Does anyone know how long it takes a Ramshorn to become sexually mature and start laying eggs? This piece of information would help me greatly. I know they grow at different rates in cold or tropical tanks, but I was hoping someone had some personal experience with both because I am raising them in both as well. Any input would be greatly appreciated. Thanks so much in advance!