Update 9/14/2019
I was trying to wait for the 2 year mark but I am moving in 3 weeks so I’m going to update now. They are around 15 to 18 inches and have grown quite a bit since I put them in the tank.
Thanks everyone. It was a lot of work to set up but now all i have to do is clean the acrylic once a month, clean the filter once every 6 months, and feed once a day. Mabye about 1hr per month of work.