Yeah, "we" collectively probably need to kill a few fish to work out the details.
Cecil, I've been thinking about the tank in the basement approach (plan to try it next Winter with some BG for fun & education). I think you could cut humidity gain in the house air by covering the tank; as that might inhibit O2 exchange with the tank water, aeration may be needed. I was planning on running an aquarium aerator/airstone, so I may try covering the tank if the basement seems too damp (don't want my machine tools, etc to rust). Or I may just run the dehumidifier more.