Yes, and I believe not long ago you said you were upgrading that week to something more like 100 gallons or more? Drawing on what ltbw said, it's by no means a rule, just a guideline, and only applies to adult sizes. Before long you will run into ammonia issues as a tank that small cannot support the huge bioload that's in it. As adult fish, you're talking around 110 inches collectively, not including your convict fry, so you have infact doubly stocked your tank if that's the guide yr going off.
As lotus said, fish don't need to eat every day.