Hello, I have one 2 inch albino pleco, i have had about a month, I bought it with my 10 gallon tank. I have 3 4 inch pond rockets, and I got these two golden algae eaters about a week ago. My tank is going crazy with algae, and is filled with shells, that evidently the pleco and algae eaters love to eat off of. my algae eaters seem to be getting well established, and even bold toward the goldfish, and growing. Herein lies my confusion. When I got them, there was like a centimeter difference in size, between the two. Now, even though they have both been growing, the small one has maybe grown half an inch, meanwhile, the other one has grown to twice its size. Can anyone tell me why the small one isnt growing as fast, or perhaps why the bigger one is? does anybody have any ideas what could be the difference between the two?