I bought a copper band about a year ago to take care of my aptasia and he did just that. I had I would guess about 100 and in about 6 weeks he had eaten them all. At first I did not think he was eating them but slowly they were gone. He seemed to be doing well for 6 months but all of a sudden...
I have a 105 gallon flat back hex which is a very well made tank. I find no real problems with it other than wishing the top openings were larger and it did not scratch so easily. I have owned a number of glass tanks and this is my first acrylic(4 years old) and my next tank might be another...