No. There's no way to keep it running the term of a deployment unassisted by people. It'll evaporate to the point of being well below your filtration system. Not to mention the depletion of chemicals/minerals by the animals inside it will amount to a slow nutritional starvation. Even with a water top off, there's no way to ensure things will survive without even infrequent pwc
's. I can tell you... I was military too, until recently when I got medically retired, and in just a space of one JRTC, I had my stable 1.5 year old system crash, and it's still on recovery. And that was WITH somebody checking on it every few days. All it took was the ballasts burning out on half my lighting and the nitrates going unchecked from overfeeding and no pwc
's. Algal bloom doesn't even COVER what happened. Then take in consideration power failures, equipment failures, short outs, unexpected deaths of fish which can cause ammonia overloads... you're better off either finding a care taker or just breaking the system down while you're gone. Maybe you could keep it up for a two week vacation with auto top off, but it won't last longer than that. Maybe somebody here can prove me wrong, there's technology for **** near anything these days.