Well, it has been about a week since my 3 p's moved into their 55 from a 10 and WOW, have they grown. I would say atleast doubling in size, if not more. They looked to be only 1 inch in the 10, but now they are pushing 3! Is this just a trick of the glass of are they realy growing that fast. To be honest, i probibly feed them way too much...Pelets in the morning, earthworm in the afternoon, krill at night and pelets again before bed.. but they always eat, and are growing like crazy. Word to that.