And if you are talking about the land section not being in balance you are wrong. Not sure what your intent was but you haven't replied so I will answer for both possible questions. I know the density of a snake in an area might be 1 to 1/2 an acre in some cases but this does not mean you need half an acre of plants to accommodate for waste. For one there are MANY other animals sharing that half acre with them, many that are much larger and higher metabolism and poop more. Two it's not just plants taking care of waste, it is primarily the inverts used in the system that convert the waste into something that isn't harmful to your herps and is beneficial to plants (technically you don't need the plants in this type of system and some people have herps that destroy them anyway). You have springtails to quickly eliminate the bulk of the wastes mass in usually 24 hours or less and spread it then the isopods do the rest of the job of turning it into natural fertilizer (there are also detritivores that can be used in the system too). There are also aerobic microbes in that system as well. It's not an exact replication of their natural ecosystem but it is a minimal input balanced artificial ecosystem if you will. All that needs to be added is food for the herps, water for the plants and herps and the occasional leaf litter to help sustain high populations of the cleanup crews. Hope one of these posts clears things up for you depending on what your intent was.